Home / 140,275.28-193,572.60-76,600.64

Finding the Fourth Proportional to 140,275.28, 193,572.60 and 76,600.64

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Solution

The fourth proportional to 140,275.28, 193,572.60 and 76,600.64 is: 105,704.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,275.28 : 193,572.60 = 76,600.64 : x
  2. Step 2: Convert to fraction form
    140,275.28/193,572.60 = 76,600.64/x
  3. Step 3: Cross multiply
    140,275.28x = 193,572.60 × 76,600.64
  4. Step 4: Simplify right side
    140,275.28x = 14,827,785,046.46
  5. Step 5: Solve for x
    x = 14,827,785,046.46/140,275.28
  6. Step 6: Final answer
    x = 105,704.90

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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.