Home / 123,068.12-169,834.08-66,479.52

Finding the Fourth Proportional to 123,068.12, 169,834.08 and 66,479.52

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Solution

The fourth proportional to 123,068.12, 169,834.08 and 66,479.52 is: 91,741.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,068.12 : 169,834.08 = 66,479.52 : x
  2. Step 2: Convert to fraction form
    123,068.12/169,834.08 = 66,479.52/x
  3. Step 3: Cross multiply
    123,068.12x = 169,834.08 × 66,479.52
  4. Step 4: Simplify right side
    123,068.12x = 11,290,488,118.04
  5. Step 5: Solve for x
    x = 11,290,488,118.04/123,068.12
  6. Step 6: Final answer
    x = 91,741.78

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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.