Home / 278,752.44-418,156.22-89,165.21

Finding the Fourth Proportional to 278,752.44, 418,156.22 and 89,165.21

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Solution

The fourth proportional to 278,752.44, 418,156.22 and 89,165.21 is: 133,756.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,752.44 : 418,156.22 = 89,165.21 : x
  2. Step 2: Convert to fraction form
    278,752.44/418,156.22 = 89,165.21/x
  3. Step 3: Cross multiply
    278,752.44x = 418,156.22 × 89,165.21
  4. Step 4: Simplify right side
    278,752.44x = 37,284,985,301.24
  5. Step 5: Solve for x
    x = 37,284,985,301.24/278,752.44
  6. Step 6: Final answer
    x = 133,756.62

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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.