Home / 132,540.75-182,904.80-78,824.61

Finding the Fourth Proportional to 132,540.75, 182,904.80 and 78,824.61

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Solution

The fourth proportional to 132,540.75, 182,904.80 and 78,824.61 is: 108,777.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,540.75 : 182,904.80 = 78,824.61 : x
  2. Step 2: Convert to fraction form
    132,540.75/182,904.80 = 78,824.61/x
  3. Step 3: Cross multiply
    132,540.75x = 182,904.80 × 78,824.61
  4. Step 4: Simplify right side
    132,540.75x = 14,417,399,133.01
  5. Step 5: Solve for x
    x = 14,417,399,133.01/132,540.75
  6. Step 6: Final answer
    x = 108,777.11

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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.