Home / 122,752.20-169,372.64-71,755.07

Finding the Fourth Proportional to 122,752.20, 169,372.64 and 71,755.07

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Solution

The fourth proportional to 122,752.20, 169,372.64 and 71,755.07 is: 99,007.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,752.20 : 169,372.64 = 71,755.07 : x
  2. Step 2: Convert to fraction form
    122,752.20/169,372.64 = 71,755.07/x
  3. Step 3: Cross multiply
    122,752.20x = 169,372.64 × 71,755.07
  4. Step 4: Simplify right side
    122,752.20x = 12,153,344,433.65
  5. Step 5: Solve for x
    x = 12,153,344,433.65/122,752.20
  6. Step 6: Final answer
    x = 99,007.14

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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.