Home / 80,173.50-120,224.70-42,726.59

Finding the Fourth Proportional to 80,173.50, 120,224.70 and 42,726.59

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Solution

The fourth proportional to 80,173.50, 120,224.70 and 42,726.59 is: 64,070.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,173.50 : 120,224.70 = 42,726.59 : x
  2. Step 2: Convert to fraction form
    80,173.50/120,224.70 = 42,726.59/x
  3. Step 3: Cross multiply
    80,173.50x = 120,224.70 × 42,726.59
  4. Step 4: Simplify right side
    80,173.50x = 5,136,791,251.14
  5. Step 5: Solve for x
    x = 5,136,791,251.14/80,173.50
  6. Step 6: Final answer
    x = 64,070.94

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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.