Home / 132,386.10-182,696.75-81,428.73

Finding the Fourth Proportional to 132,386.10, 182,696.75 and 81,428.73

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Solution

The fourth proportional to 132,386.10, 182,696.75 and 81,428.73 is: 112,374.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,386.10 : 182,696.75 = 81,428.73 : x
  2. Step 2: Convert to fraction form
    132,386.10/182,696.75 = 81,428.73/x
  3. Step 3: Cross multiply
    132,386.10x = 182,696.75 × 81,428.73
  4. Step 4: Simplify right side
    132,386.10x = 14,876,764,327.63
  5. Step 5: Solve for x
    x = 14,876,764,327.63/132,386.10
  6. Step 6: Final answer
    x = 112,374.07

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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.