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Finding the Fourth Proportional to 172,279.71, 237,751.13 and 104,309.11

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Solution

The fourth proportional to 172,279.71, 237,751.13 and 104,309.11 is: 143,949.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,279.71 : 237,751.13 = 104,309.11 : x
  2. Step 2: Convert to fraction form
    172,279.71/237,751.13 = 104,309.11/x
  3. Step 3: Cross multiply
    172,279.71x = 237,751.13 × 104,309.11
  4. Step 4: Simplify right side
    172,279.71x = 24,799,608,771.79
  5. Step 5: Solve for x
    x = 24,799,608,771.79/172,279.71
  6. Step 6: Final answer
    x = 143,949.68

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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.