Home / 138,232.20-207,348.30-68,248.20

Finding the Fourth Proportional to 138,232.20, 207,348.30 and 68,248.20

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Solution

The fourth proportional to 138,232.20, 207,348.30 and 68,248.20 is: 102,372.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,232.20 : 207,348.30 = 68,248.20 : x
  2. Step 2: Convert to fraction form
    138,232.20/207,348.30 = 68,248.20/x
  3. Step 3: Cross multiply
    138,232.20x = 207,348.30 × 68,248.20
  4. Step 4: Simplify right side
    138,232.20x = 14,151,148,248.06
  5. Step 5: Solve for x
    x = 14,151,148,248.06/138,232.20
  6. Step 6: Final answer
    x = 102,372.30

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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.