Home / 92,139.52-138,041.61-64,000.12

Finding the Fourth Proportional to 92,139.52, 138,041.61 and 64,000.12

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Solution

The fourth proportional to 92,139.52, 138,041.61 and 64,000.12 is: 95,883.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,139.52 : 138,041.61 = 64,000.12 : x
  2. Step 2: Convert to fraction form
    92,139.52/138,041.61 = 64,000.12/x
  3. Step 3: Cross multiply
    92,139.52x = 138,041.61 × 64,000.12
  4. Step 4: Simplify right side
    92,139.52x = 8,834,679,604.99
  5. Step 5: Solve for x
    x = 8,834,679,604.99/92,139.52
  6. Step 6: Final answer
    x = 95,883.72

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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.