Home / 117,115.55-161,618.11-63,399.39

Finding the Fourth Proportional to 117,115.55, 161,618.11 and 63,399.39

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Solution

The fourth proportional to 117,115.55, 161,618.11 and 63,399.39 is: 87,490.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,115.55 : 161,618.11 = 63,399.39 : x
  2. Step 2: Convert to fraction form
    117,115.55/161,618.11 = 63,399.39/x
  3. Step 3: Cross multiply
    117,115.55x = 161,618.11 × 63,399.39
  4. Step 4: Simplify right side
    117,115.55x = 10,246,489,586.95
  5. Step 5: Solve for x
    x = 10,246,489,586.95/117,115.55
  6. Step 6: Final answer
    x = 87,490.43

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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.