Home / 125,144.86-187,715.30-30,375.83

Finding the Fourth Proportional to 125,144.86, 187,715.30 and 30,375.83

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Solution

The fourth proportional to 125,144.86, 187,715.30 and 30,375.83 is: 45,563.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,144.86 : 187,715.30 = 30,375.83 : x
  2. Step 2: Convert to fraction form
    125,144.86/187,715.30 = 30,375.83/x
  3. Step 3: Cross multiply
    125,144.86x = 187,715.30 × 30,375.83
  4. Step 4: Simplify right side
    125,144.86x = 5,702,008,041.20
  5. Step 5: Solve for x
    x = 5,702,008,041.20/125,144.86
  6. Step 6: Final answer
    x = 45,563.26

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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.