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Finding the Fourth Proportional to 169,011.97, 253,526.15 and 139,375.69

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Solution

The fourth proportional to 169,011.97, 253,526.15 and 139,375.69 is: 209,070.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,011.97 : 253,526.15 = 139,375.69 : x
  2. Step 2: Convert to fraction form
    169,011.97/253,526.15 = 139,375.69/x
  3. Step 3: Cross multiply
    169,011.97x = 253,526.15 × 139,375.69
  4. Step 4: Simplify right side
    169,011.97x = 35,335,381,803.92
  5. Step 5: Solve for x
    x = 35,335,381,803.92/169,011.97
  6. Step 6: Final answer
    x = 209,070.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.