Home / 75,166.68-112,755.28-30,188.04

Finding the Fourth Proportional to 75,166.68, 112,755.28 and 30,188.04

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Solution

The fourth proportional to 75,166.68, 112,755.28 and 30,188.04 is: 45,284.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,166.68 : 112,755.28 = 30,188.04 : x
  2. Step 2: Convert to fraction form
    75,166.68/112,755.28 = 30,188.04/x
  3. Step 3: Cross multiply
    75,166.68x = 112,755.28 × 30,188.04
  4. Step 4: Simplify right side
    75,166.68x = 3,403,860,902.85
  5. Step 5: Solve for x
    x = 3,403,860,902.85/75,166.68
  6. Step 6: Final answer
    x = 45,284.17

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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.