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Finding the Fourth Proportional to 123,053.74, 169,814.27 and 66,465.11

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Solution

The fourth proportional to 123,053.74, 169,814.27 and 66,465.11 is: 91,721.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,053.74 : 169,814.27 = 66,465.11 : x
  2. Step 2: Convert to fraction form
    123,053.74/169,814.27 = 66,465.11/x
  3. Step 3: Cross multiply
    123,053.74x = 169,814.27 × 66,465.11
  4. Step 4: Simplify right side
    123,053.74x = 11,286,724,135.12
  5. Step 5: Solve for x
    x = 11,286,724,135.12/123,053.74
  6. Step 6: Final answer
    x = 91,721.91

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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.