Home / 165,140.91-227,895.80-89,689.95

Finding the Fourth Proportional to 165,140.91, 227,895.80 and 89,689.95

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Solution

The fourth proportional to 165,140.91, 227,895.80 and 89,689.95 is: 123,772.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,140.91 : 227,895.80 = 89,689.95 : x
  2. Step 2: Convert to fraction form
    165,140.91/227,895.80 = 89,689.95/x
  3. Step 3: Cross multiply
    165,140.91x = 227,895.80 × 89,689.95
  4. Step 4: Simplify right side
    165,140.91x = 20,439,962,458.76
  5. Step 5: Solve for x
    x = 20,439,962,458.76/165,140.91
  6. Step 6: Final answer
    x = 123,772.86

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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.