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Finding the Fourth Proportional to 165,558, 228,470.04 and 90,107.04

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Solution

The fourth proportional to 165,558, 228,470.04 and 90,107.04 is: 124,347.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,558 : 228,470.04 = 90,107.04 : x
  2. Step 2: Convert to fraction form
    165,558/228,470.04 = 90,107.04/x
  3. Step 3: Cross multiply
    165,558x = 228,470.04 × 90,107.04
  4. Step 4: Simplify right side
    165,558x = 20,586,759,033.08
  5. Step 5: Solve for x
    x = 20,586,759,033.08/165,558
  6. Step 6: Final answer
    x = 124,347.72

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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.