Home / 137,385.09-206,107.16-42,613.29

Finding the Fourth Proportional to 137,385.09, 206,107.16 and 42,613.29

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Solution

The fourth proportional to 137,385.09, 206,107.16 and 42,613.29 is: 63,929.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,385.09 : 206,107.16 = 42,613.29 : x
  2. Step 2: Convert to fraction form
    137,385.09/206,107.16 = 42,613.29/x
  3. Step 3: Cross multiply
    137,385.09x = 206,107.16 × 42,613.29
  4. Step 4: Simplify right side
    137,385.09x = 8,782,903,967.09
  5. Step 5: Solve for x
    x = 8,782,903,967.09/137,385.09
  6. Step 6: Final answer
    x = 63,929.09

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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.