Home / 138,812.85-191,559.44-75,150.13

Finding the Fourth Proportional to 138,812.85, 191,559.44 and 75,150.13

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Solution

The fourth proportional to 138,812.85, 191,559.44 and 75,150.13 is: 103,705.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,812.85 : 191,559.44 = 75,150.13 : x
  2. Step 2: Convert to fraction form
    138,812.85/191,559.44 = 75,150.13/x
  3. Step 3: Cross multiply
    138,812.85x = 191,559.44 × 75,150.13
  4. Step 4: Simplify right side
    138,812.85x = 14,395,716,818.73
  5. Step 5: Solve for x
    x = 14,395,716,818.73/138,812.85
  6. Step 6: Final answer
    x = 103,705.94

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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.