Home / 181,387.81-250,304.43-100,812.57

Finding the Fourth Proportional to 181,387.81, 250,304.43 and 100,812.57

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Solution

The fourth proportional to 181,387.81, 250,304.43 and 100,812.57 is: 139,115.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,387.81 : 250,304.43 = 100,812.57 : x
  2. Step 2: Convert to fraction form
    181,387.81/250,304.43 = 100,812.57/x
  3. Step 3: Cross multiply
    181,387.81x = 250,304.43 × 100,812.57
  4. Step 4: Simplify right side
    181,387.81x = 25,233,833,854.96
  5. Step 5: Solve for x
    x = 25,233,833,854.96/181,387.81
  6. Step 6: Final answer
    x = 139,115.38

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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.