Home / 129,534.60-194,301.90-74,136.20

Finding the Fourth Proportional to 129,534.60, 194,301.90 and 74,136.20

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Solution

The fourth proportional to 129,534.60, 194,301.90 and 74,136.20 is: 111,204.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,534.60 : 194,301.90 = 74,136.20 : x
  2. Step 2: Convert to fraction form
    129,534.60/194,301.90 = 74,136.20/x
  3. Step 3: Cross multiply
    129,534.60x = 194,301.90 × 74,136.20
  4. Step 4: Simplify right side
    129,534.60x = 14,404,804,518.78
  5. Step 5: Solve for x
    x = 14,404,804,518.78/129,534.60
  6. Step 6: Final answer
    x = 111,204.30

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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.