Home / 131,397.12-181,329.39-74,812.14

Finding the Fourth Proportional to 131,397.12, 181,329.39 and 74,812.14

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Solution

The fourth proportional to 131,397.12, 181,329.39 and 74,812.14 is: 103,241.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,397.12 : 181,329.39 = 74,812.14 : x
  2. Step 2: Convert to fraction form
    131,397.12/181,329.39 = 74,812.14/x
  3. Step 3: Cross multiply
    131,397.12x = 181,329.39 × 74,812.14
  4. Step 4: Simplify right side
    131,397.12x = 13,565,639,710.79
  5. Step 5: Solve for x
    x = 13,565,639,710.79/131,397.12
  6. Step 6: Final answer
    x = 103,241.53

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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.