Home / 123,553.20-185,502.60-76,897.20

Finding the Fourth Proportional to 123,553.20, 185,502.60 and 76,897.20

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Solution

The fourth proportional to 123,553.20, 185,502.60 and 76,897.20 is: 115,453.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,553.20 : 185,502.60 = 76,897.20 : x
  2. Step 2: Convert to fraction form
    123,553.20/185,502.60 = 76,897.20/x
  3. Step 3: Cross multiply
    123,553.20x = 185,502.60 × 76,897.20
  4. Step 4: Simplify right side
    123,553.20x = 14,264,630,532.72
  5. Step 5: Solve for x
    x = 14,264,630,532.72/123,553.20
  6. Step 6: Final answer
    x = 115,453.35

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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.