Home / 181,285.20-250,213.59-100,740.42

Finding the Fourth Proportional to 181,285.20, 250,213.59 and 100,740.42

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Solution

The fourth proportional to 181,285.20, 250,213.59 and 100,740.42 is: 139,044.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,285.20 : 250,213.59 = 100,740.42 : x
  2. Step 2: Convert to fraction form
    181,285.20/250,213.59 = 100,740.42/x
  3. Step 3: Cross multiply
    181,285.20x = 250,213.59 × 100,740.42
  4. Step 4: Simplify right side
    181,285.20x = 25,206,622,146.31
  5. Step 5: Solve for x
    x = 25,206,622,146.31/181,285.20
  6. Step 6: Final answer
    x = 139,044.02

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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.