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Finding the Fourth Proportional to 132,925.80, 183,499.03 and 81,947.64

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Solution

The fourth proportional to 132,925.80, 183,499.03 and 81,947.64 is: 113,125.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,925.80 : 183,499.03 = 81,947.64 : x
  2. Step 2: Convert to fraction form
    132,925.80/183,499.03 = 81,947.64/x
  3. Step 3: Cross multiply
    132,925.80x = 183,499.03 × 81,947.64
  4. Step 4: Simplify right side
    132,925.80x = 15,037,312,450.79
  5. Step 5: Solve for x
    x = 15,037,312,450.79/132,925.80
  6. Step 6: Final answer
    x = 113,125.61

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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.