Home / 137,962.20-206,943.30-102,532.80

Finding the Fourth Proportional to 137,962.20, 206,943.30 and 102,532.80

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Solution

The fourth proportional to 137,962.20, 206,943.30 and 102,532.80 is: 153,799.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,962.20 : 206,943.30 = 102,532.80 : x
  2. Step 2: Convert to fraction form
    137,962.20/206,943.30 = 102,532.80/x
  3. Step 3: Cross multiply
    137,962.20x = 206,943.30 × 102,532.80
  4. Step 4: Simplify right side
    137,962.20x = 21,218,475,990.24
  5. Step 5: Solve for x
    x = 21,218,475,990.24/137,962.20
  6. Step 6: Final answer
    x = 153,799.20

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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.