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Finding the Fourth Proportional to 118,758.75, 163,880.82 and 65,042.63

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Solution

The fourth proportional to 118,758.75, 163,880.82 and 65,042.63 is: 89,755.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,758.75 : 163,880.82 = 65,042.63 : x
  2. Step 2: Convert to fraction form
    118,758.75/163,880.82 = 65,042.63/x
  3. Step 3: Cross multiply
    118,758.75x = 163,880.82 × 65,042.63
  4. Step 4: Simplify right side
    118,758.75x = 10,659,238,719.95
  5. Step 5: Solve for x
    x = 10,659,238,719.95/118,758.75
  6. Step 6: Final answer
    x = 89,755.40

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1.5x scale

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.