Home / 125,296.20-187,998.30-72,750.60

Finding the Fourth Proportional to 125,296.20, 187,998.30 and 72,750.60

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Solution

The fourth proportional to 125,296.20, 187,998.30 and 72,750.60 is: 109,157.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,296.20 : 187,998.30 = 72,750.60 : x
  2. Step 2: Convert to fraction form
    125,296.20/187,998.30 = 72,750.60/x
  3. Step 3: Cross multiply
    125,296.20x = 187,998.30 × 72,750.60
  4. Step 4: Simplify right side
    125,296.20x = 13,676,989,123.98
  5. Step 5: Solve for x
    x = 13,676,989,123.98/125,296.20
  6. Step 6: Final answer
    x = 109,157.25

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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.