Home / 123,618.80-185,428.20-122,306.60

Finding the Fourth Proportional to 123,618.80, 185,428.20 and 122,306.60

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Solution

The fourth proportional to 123,618.80, 185,428.20 and 122,306.60 is: 183,459.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,618.80 : 185,428.20 = 122,306.60 : x
  2. Step 2: Convert to fraction form
    123,618.80/185,428.20 = 122,306.60/x
  3. Step 3: Cross multiply
    123,618.80x = 185,428.20 × 122,306.60
  4. Step 4: Simplify right side
    123,618.80x = 22,679,092,686.12
  5. Step 5: Solve for x
    x = 22,679,092,686.12/123,618.80
  6. Step 6: Final answer
    x = 183,459.90

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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.