Home / 129,622.20-194,433.30-42,070.20

Finding the Fourth Proportional to 129,622.20, 194,433.30 and 42,070.20

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Solution

The fourth proportional to 129,622.20, 194,433.30 and 42,070.20 is: 63,105.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,622.20 : 194,433.30 = 42,070.20 : x
  2. Step 2: Convert to fraction form
    129,622.20/194,433.30 = 42,070.20/x
  3. Step 3: Cross multiply
    129,622.20x = 194,433.30 × 42,070.20
  4. Step 4: Simplify right side
    129,622.20x = 8,179,847,817.66
  5. Step 5: Solve for x
    x = 8,179,847,817.66/129,622.20
  6. Step 6: Final answer
    x = 63,105.30

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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.