Home / 129,296.24-193,966.24-66,143.78

Finding the Fourth Proportional to 129,296.24, 193,966.24 and 66,143.78

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Solution

The fourth proportional to 129,296.24, 193,966.24 and 66,143.78 is: 99,226.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,296.24 : 193,966.24 = 66,143.78 : x
  2. Step 2: Convert to fraction form
    129,296.24/193,966.24 = 66,143.78/x
  3. Step 3: Cross multiply
    129,296.24x = 193,966.24 × 66,143.78
  4. Step 4: Simplify right side
    129,296.24x = 12,829,660,305.99
  5. Step 5: Solve for x
    x = 12,829,660,305.99/129,296.24
  6. Step 6: Final answer
    x = 99,226.86

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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.