Home / 90,322.13-124,360.16-76,683.18

Finding the Fourth Proportional to 90,322.13, 124,360.16 and 76,683.18

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Solution

The fourth proportional to 90,322.13, 124,360.16 and 76,683.18 is: 105,581.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,322.13 : 124,360.16 = 76,683.18 : x
  2. Step 2: Convert to fraction form
    90,322.13/124,360.16 = 76,683.18/x
  3. Step 3: Cross multiply
    90,322.13x = 124,360.16 × 76,683.18
  4. Step 4: Simplify right side
    90,322.13x = 9,536,332,150.69
  5. Step 5: Solve for x
    x = 9,536,332,150.69/90,322.13
  6. Step 6: Final answer
    x = 105,581.35

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Find fourth proportional to 90,323.13, 124,361.53 and 76,684.18
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.