Home / 129,535.10-194,302.65-74,136.70

Finding the Fourth Proportional to 129,535.10, 194,302.65 and 74,136.70

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Solution

The fourth proportional to 129,535.10, 194,302.65 and 74,136.70 is: 111,205.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,535.10 : 194,302.65 = 74,136.70 : x
  2. Step 2: Convert to fraction form
    129,535.10/194,302.65 = 74,136.70/x
  3. Step 3: Cross multiply
    129,535.10x = 194,302.65 × 74,136.70
  4. Step 4: Simplify right side
    129,535.10x = 14,404,957,272.26
  5. Step 5: Solve for x
    x = 14,404,957,272.26/129,535.10
  6. Step 6: Final answer
    x = 111,205.05

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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.