Home / 151,478.11-209,044.22-83,495.90

Finding the Fourth Proportional to 151,478.11, 209,044.22 and 83,495.90

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Solution

The fourth proportional to 151,478.11, 209,044.22 and 83,495.90 is: 115,226.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,478.11 : 209,044.22 = 83,495.90 : x
  2. Step 2: Convert to fraction form
    151,478.11/209,044.22 = 83,495.90/x
  3. Step 3: Cross multiply
    151,478.11x = 209,044.22 × 83,495.90
  4. Step 4: Simplify right side
    151,478.11x = 17,454,335,863.07
  5. Step 5: Solve for x
    x = 17,454,335,863.07/151,478.11
  6. Step 6: Final answer
    x = 115,226.78

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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.