Home / 137,385.13-206,107.31-42,613.44

Finding the Fourth Proportional to 137,385.13, 206,107.31 and 42,613.44

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Solution

The fourth proportional to 137,385.13, 206,107.31 and 42,613.44 is: 63,929.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,385.13 : 206,107.31 = 42,613.44 : x
  2. Step 2: Convert to fraction form
    137,385.13/206,107.31 = 42,613.44/x
  3. Step 3: Cross multiply
    137,385.13x = 206,107.31 × 42,613.44
  4. Step 4: Simplify right side
    137,385.13x = 8,782,941,488.25
  5. Step 5: Solve for x
    x = 8,782,941,488.25/137,385.13
  6. Step 6: Final answer
    x = 63,929.35

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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.