Home / 87,156.60-120,315.95-67,006.43

Finding the Fourth Proportional to 87,156.60, 120,315.95 and 67,006.43

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Solution

The fourth proportional to 87,156.60, 120,315.95 and 67,006.43 is: 92,499.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,156.60 : 120,315.95 = 67,006.43 : x
  2. Step 2: Convert to fraction form
    87,156.60/120,315.95 = 67,006.43/x
  3. Step 3: Cross multiply
    87,156.60x = 120,315.95 × 67,006.43
  4. Step 4: Simplify right side
    87,156.60x = 8,061,941,344.95
  5. Step 5: Solve for x
    x = 8,061,941,344.95/87,156.60
  6. Step 6: Final answer
    x = 92,499.49

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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.