Home / 137,962.20-206,943.30-54,856.20

Finding the Fourth Proportional to 137,962.20, 206,943.30 and 54,856.20

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Solution

The fourth proportional to 137,962.20, 206,943.30 and 54,856.20 is: 82,284.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,962.20 : 206,943.30 = 54,856.20 : x
  2. Step 2: Convert to fraction form
    137,962.20/206,943.30 = 54,856.20/x
  3. Step 3: Cross multiply
    137,962.20x = 206,943.30 × 54,856.20
  4. Step 4: Simplify right side
    137,962.20x = 11,352,123,053.46
  5. Step 5: Solve for x
    x = 11,352,123,053.46/137,962.20
  6. Step 6: Final answer
    x = 82,284.30

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1.5x scale

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.