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Finding the Fourth Proportional to 118,314, 163,273.32 and 68,042.16

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Solution

The fourth proportional to 118,314, 163,273.32 and 68,042.16 is: 93,898.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,314 : 163,273.32 = 68,042.16 : x
  2. Step 2: Convert to fraction form
    118,314/163,273.32 = 68,042.16/x
  3. Step 3: Cross multiply
    118,314x = 163,273.32 × 68,042.16
  4. Step 4: Simplify right side
    118,314x = 11,109,469,363.17
  5. Step 5: Solve for x
    x = 11,109,469,363.17/118,314
  6. Step 6: Final answer
    x = 93,898.18

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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.