Home / 123,142.62-170,048.79-92,876.16

Finding the Fourth Proportional to 123,142.62, 170,048.79 and 92,876.16

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Solution

The fourth proportional to 123,142.62, 170,048.79 and 92,876.16 is: 128,253.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,142.62 : 170,048.79 = 92,876.16 : x
  2. Step 2: Convert to fraction form
    123,142.62/170,048.79 = 92,876.16/x
  3. Step 3: Cross multiply
    123,142.62x = 170,048.79 × 92,876.16
  4. Step 4: Simplify right side
    123,142.62x = 15,793,478,627.85
  5. Step 5: Solve for x
    x = 15,793,478,627.85/123,142.62
  6. Step 6: Final answer
    x = 128,253.55

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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.