Home / 129,333.60-194,000.40-54,538.20

Finding the Fourth Proportional to 129,333.60, 194,000.40 and 54,538.20

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Solution

The fourth proportional to 129,333.60, 194,000.40 and 54,538.20 is: 81,807.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,333.60 : 194,000.40 = 54,538.20 : x
  2. Step 2: Convert to fraction form
    129,333.60/194,000.40 = 54,538.20/x
  3. Step 3: Cross multiply
    129,333.60x = 194,000.40 × 54,538.20
  4. Step 4: Simplify right side
    129,333.60x = 10,580,432,615.28
  5. Step 5: Solve for x
    x = 10,580,432,615.28/129,333.60
  6. Step 6: Final answer
    x = 81,807.30

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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.