Home / 129,513.60-194,270.40-54,718.20

Finding the Fourth Proportional to 129,513.60, 194,270.40 and 54,718.20

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Solution

The fourth proportional to 129,513.60, 194,270.40 and 54,718.20 is: 82,077.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,513.60 : 194,270.40 = 54,718.20 : x
  2. Step 2: Convert to fraction form
    129,513.60/194,270.40 = 54,718.20/x
  3. Step 3: Cross multiply
    129,513.60x = 194,270.40 × 54,718.20
  4. Step 4: Simplify right side
    129,513.60x = 10,630,126,601.28
  5. Step 5: Solve for x
    x = 10,630,126,601.28/129,513.60
  6. Step 6: Final answer
    x = 82,077.30

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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.