Home / 112,767.81-155,615.51-64,372.23

Finding the Fourth Proportional to 112,767.81, 155,615.51 and 64,372.23

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Solution

The fourth proportional to 112,767.81, 155,615.51 and 64,372.23 is: 88,831.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,767.81 : 155,615.51 = 64,372.23 : x
  2. Step 2: Convert to fraction form
    112,767.81/155,615.51 = 64,372.23/x
  3. Step 3: Cross multiply
    112,767.81x = 155,615.51 × 64,372.23
  4. Step 4: Simplify right side
    112,767.81x = 10,017,317,079.43
  5. Step 5: Solve for x
    x = 10,017,317,079.43/112,767.81
  6. Step 6: Final answer
    x = 88,831.35

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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.