Home / 165,981.25-229,045.57-90,515.17

Finding the Fourth Proportional to 165,981.25, 229,045.57 and 90,515.17

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Solution

The fourth proportional to 165,981.25, 229,045.57 and 90,515.17 is: 124,906.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,981.25 : 229,045.57 = 90,515.17 : x
  2. Step 2: Convert to fraction form
    165,981.25/229,045.57 = 90,515.17/x
  3. Step 3: Cross multiply
    165,981.25x = 229,045.57 × 90,515.17
  4. Step 4: Simplify right side
    165,981.25x = 20,732,099,275.46
  5. Step 5: Solve for x
    x = 20,732,099,275.46/165,981.25
  6. Step 6: Final answer
    x = 124,906.27

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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.