Home / 132,937.20-199,337.40-39,430.80

Finding the Fourth Proportional to 132,937.20, 199,337.40 and 39,430.80

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Solution

The fourth proportional to 132,937.20, 199,337.40 and 39,430.80 is: 59,125.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,937.20 : 199,337.40 = 39,430.80 : x
  2. Step 2: Convert to fraction form
    132,937.20/199,337.40 = 39,430.80/x
  3. Step 3: Cross multiply
    132,937.20x = 199,337.40 × 39,430.80
  4. Step 4: Simplify right side
    132,937.20x = 7,860,033,151.92
  5. Step 5: Solve for x
    x = 7,860,033,151.92/132,937.20
  6. Step 6: Final answer
    x = 59,125.91

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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.