Home / 125,997.88-173,902.28-72,319.20

Finding the Fourth Proportional to 125,997.88, 173,902.28 and 72,319.20

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Solution

The fourth proportional to 125,997.88, 173,902.28 and 72,319.20 is: 99,814.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,997.88 : 173,902.28 = 72,319.20 : x
  2. Step 2: Convert to fraction form
    125,997.88/173,902.28 = 72,319.20/x
  3. Step 3: Cross multiply
    125,997.88x = 173,902.28 × 72,319.20
  4. Step 4: Simplify right side
    125,997.88x = 12,576,473,767.78
  5. Step 5: Solve for x
    x = 12,576,473,767.78/125,997.88
  6. Step 6: Final answer
    x = 99,814.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.