Home / 137,246.20-205,869.30-54,129.40

Finding the Fourth Proportional to 137,246.20, 205,869.30 and 54,129.40

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Solution

The fourth proportional to 137,246.20, 205,869.30 and 54,129.40 is: 81,194.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,246.20 : 205,869.30 = 54,129.40 : x
  2. Step 2: Convert to fraction form
    137,246.20/205,869.30 = 54,129.40/x
  3. Step 3: Cross multiply
    137,246.20x = 205,869.30 × 54,129.40
  4. Step 4: Simplify right side
    137,246.20x = 11,143,581,687.42
  5. Step 5: Solve for x
    x = 11,143,581,687.42/137,246.20
  6. Step 6: Final answer
    x = 81,194.10

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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.