Home / 89,814.20-134,721.30-88,278.20

Finding the Fourth Proportional to 89,814.20, 134,721.30 and 88,278.20

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Solution

The fourth proportional to 89,814.20, 134,721.30 and 88,278.20 is: 132,417.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,814.20 : 134,721.30 = 88,278.20 : x
  2. Step 2: Convert to fraction form
    89,814.20/134,721.30 = 88,278.20/x
  3. Step 3: Cross multiply
    89,814.20x = 134,721.30 × 88,278.20
  4. Step 4: Simplify right side
    89,814.20x = 11,892,953,865.66
  5. Step 5: Solve for x
    x = 11,892,953,865.66/89,814.20
  6. Step 6: Final answer
    x = 132,417.30

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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.