Home / 132,557.45-182,868.84-78,811.92

Finding the Fourth Proportional to 132,557.45, 182,868.84 and 78,811.92

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Solution

The fourth proportional to 132,557.45, 182,868.84 and 78,811.92 is: 108,724.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,557.45 : 182,868.84 = 78,811.92 : x
  2. Step 2: Convert to fraction form
    132,557.45/182,868.84 = 78,811.92/x
  3. Step 3: Cross multiply
    132,557.45x = 182,868.84 × 78,811.92
  4. Step 4: Simplify right side
    132,557.45x = 14,412,244,388.57
  5. Step 5: Solve for x
    x = 14,412,244,388.57/132,557.45
  6. Step 6: Final answer
    x = 108,724.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.