Home / 124,225.20-186,337.80-71,591.40

Finding the Fourth Proportional to 124,225.20, 186,337.80 and 71,591.40

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Solution

The fourth proportional to 124,225.20, 186,337.80 and 71,591.40 is: 107,387.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,225.20 : 186,337.80 = 71,591.40 : x
  2. Step 2: Convert to fraction form
    124,225.20/186,337.80 = 71,591.40/x
  3. Step 3: Cross multiply
    124,225.20x = 186,337.80 × 71,591.40
  4. Step 4: Simplify right side
    124,225.20x = 13,340,183,974.92
  5. Step 5: Solve for x
    x = 13,340,183,974.92/124,225.20
  6. Step 6: Final answer
    x = 107,387.10

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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.