Home / 144,834.80-217,252.20-138,929.90

Finding the Fourth Proportional to 144,834.80, 217,252.20 and 138,929.90

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Solution

The fourth proportional to 144,834.80, 217,252.20 and 138,929.90 is: 208,394.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,834.80 : 217,252.20 = 138,929.90 : x
  2. Step 2: Convert to fraction form
    144,834.80/217,252.20 = 138,929.90/x
  3. Step 3: Cross multiply
    144,834.80x = 217,252.20 × 138,929.90
  4. Step 4: Simplify right side
    144,834.80x = 30,182,826,420.78
  5. Step 5: Solve for x
    x = 30,182,826,420.78/144,834.80
  6. Step 6: Final answer
    x = 208,394.85

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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.