Home / 90,616.44-125,000.26-84,201.78

Finding the Fourth Proportional to 90,616.44, 125,000.26 and 84,201.78

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Solution

The fourth proportional to 90,616.44, 125,000.26 and 84,201.78 is: 116,151.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,616.44 : 125,000.26 = 84,201.78 : x
  2. Step 2: Convert to fraction form
    90,616.44/125,000.26 = 84,201.78/x
  3. Step 3: Cross multiply
    90,616.44x = 125,000.26 × 84,201.78
  4. Step 4: Simplify right side
    90,616.44x = 10,525,244,392.46
  5. Step 5: Solve for x
    x = 10,525,244,392.46/90,616.44
  6. Step 6: Final answer
    x = 116,151.60

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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.