Home / 125,131.23-187,637.85-45,158.75

Finding the Fourth Proportional to 125,131.23, 187,637.85 and 45,158.75

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Solution

The fourth proportional to 125,131.23, 187,637.85 and 45,158.75 is: 67,716.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,131.23 : 187,637.85 = 45,158.75 : x
  2. Step 2: Convert to fraction form
    125,131.23/187,637.85 = 45,158.75/x
  3. Step 3: Cross multiply
    125,131.23x = 187,637.85 × 45,158.75
  4. Step 4: Simplify right side
    125,131.23x = 8,473,490,524.14
  5. Step 5: Solve for x
    x = 8,473,490,524.14/125,131.23
  6. Step 6: Final answer
    x = 67,716.83

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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.