Home / 89,932.46-135,051.78-86,170.82

Finding the Fourth Proportional to 89,932.46, 135,051.78 and 86,170.82

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Solution

The fourth proportional to 89,932.46, 135,051.78 and 86,170.82 is: 129,402.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,932.46 : 135,051.78 = 86,170.82 : x
  2. Step 2: Convert to fraction form
    89,932.46/135,051.78 = 86,170.82/x
  3. Step 3: Cross multiply
    89,932.46x = 135,051.78 × 86,170.82
  4. Step 4: Simplify right side
    89,932.46x = 11,637,521,949.80
  5. Step 5: Solve for x
    x = 11,637,521,949.80/89,932.46
  6. Step 6: Final answer
    x = 129,402.92

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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.