Home / 132,930.11-183,439.08-79,187.29

Finding the Fourth Proportional to 132,930.11, 183,439.08 and 79,187.29

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Solution

The fourth proportional to 132,930.11, 183,439.08 and 79,187.29 is: 109,275.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,930.11 : 183,439.08 = 79,187.29 : x
  2. Step 2: Convert to fraction form
    132,930.11/183,439.08 = 79,187.29/x
  3. Step 3: Cross multiply
    132,930.11x = 183,439.08 × 79,187.29
  4. Step 4: Simplify right side
    132,930.11x = 14,526,043,166.70
  5. Step 5: Solve for x
    x = 14,526,043,166.70/132,930.11
  6. Step 6: Final answer
    x = 109,275.79

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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.