Home / 124,344.20-171,621.45-73,337.90

Finding the Fourth Proportional to 124,344.20, 171,621.45 and 73,337.90

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Solution

The fourth proportional to 124,344.20, 171,621.45 and 73,337.90 is: 101,221.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,344.20 : 171,621.45 = 73,337.90 : x
  2. Step 2: Convert to fraction form
    124,344.20/171,621.45 = 73,337.90/x
  3. Step 3: Cross multiply
    124,344.20x = 171,621.45 × 73,337.90
  4. Step 4: Simplify right side
    124,344.20x = 12,586,355,879.85
  5. Step 5: Solve for x
    x = 12,586,355,879.85/124,344.20
  6. Step 6: Final answer
    x = 101,221.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.