Home / 123,399.20-185,044.08-56,823.20

Finding the Fourth Proportional to 123,399.20, 185,044.08 and 56,823.20

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Solution

The fourth proportional to 123,399.20, 185,044.08 and 56,823.20 is: 85,209.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,399.20 : 185,044.08 = 56,823.20 : x
  2. Step 2: Convert to fraction form
    123,399.20/185,044.08 = 56,823.20/x
  3. Step 3: Cross multiply
    123,399.20x = 185,044.08 × 56,823.20
  4. Step 4: Simplify right side
    123,399.20x = 10,514,796,766.66
  5. Step 5: Solve for x
    x = 10,514,796,766.66/123,399.20
  6. Step 6: Final answer
    x = 85,209.60

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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.