Home / 181,381.38-250,310.55-100,812.30

Finding the Fourth Proportional to 181,381.38, 250,310.55 and 100,812.30

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Solution

The fourth proportional to 181,381.38, 250,310.55 and 100,812.30 is: 139,123.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,381.38 : 250,310.55 = 100,812.30 : x
  2. Step 2: Convert to fraction form
    181,381.38/250,310.55 = 100,812.30/x
  3. Step 3: Cross multiply
    181,381.38x = 250,310.55 × 100,812.30
  4. Step 4: Simplify right side
    181,381.38x = 25,234,382,259.77
  5. Step 5: Solve for x
    x = 25,234,382,259.77/181,381.38
  6. Step 6: Final answer
    x = 139,123.33

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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.