Home / 125,319.24-187,990.76-45,377.40

Finding the Fourth Proportional to 125,319.24, 187,990.76 and 45,377.40

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Solution

The fourth proportional to 125,319.24, 187,990.76 and 45,377.40 is: 68,070.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,319.24 : 187,990.76 = 45,377.40 : x
  2. Step 2: Convert to fraction form
    125,319.24/187,990.76 = 45,377.40/x
  3. Step 3: Cross multiply
    125,319.24x = 187,990.76 × 45,377.40
  4. Step 4: Simplify right side
    125,319.24x = 8,530,531,912.82
  5. Step 5: Solve for x
    x = 8,530,531,912.82/125,319.24
  6. Step 6: Final answer
    x = 68,070.41

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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.