Home / 123,494.04-170,359.20-78,095.52

Finding the Fourth Proportional to 123,494.04, 170,359.20 and 78,095.52

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Solution

The fourth proportional to 123,494.04, 170,359.20 and 78,095.52 is: 107,732.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,494.04 : 170,359.20 = 78,095.52 : x
  2. Step 2: Convert to fraction form
    123,494.04/170,359.20 = 78,095.52/x
  3. Step 3: Cross multiply
    123,494.04x = 170,359.20 × 78,095.52
  4. Step 4: Simplify right side
    123,494.04x = 13,304,290,310.78
  5. Step 5: Solve for x
    x = 13,304,290,310.78/123,494.04
  6. Step 6: Final answer
    x = 107,732.25

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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.