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Finding the Fourth Proportional to 172,345.38, 237,828.92 and 99,736.76

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Solution

The fourth proportional to 172,345.38, 237,828.92 and 99,736.76 is: 137,632.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,345.38 : 237,828.92 = 99,736.76 : x
  2. Step 2: Convert to fraction form
    172,345.38/237,828.92 = 99,736.76/x
  3. Step 3: Cross multiply
    172,345.38x = 237,828.92 × 99,736.76
  4. Step 4: Simplify right side
    172,345.38x = 23,720,284,227.27
  5. Step 5: Solve for x
    x = 23,720,284,227.27/172,345.38
  6. Step 6: Final answer
    x = 137,632.26

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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.