Home / 122,921.66-169,631.82-71,944.10

Finding the Fourth Proportional to 122,921.66, 169,631.82 and 71,944.10

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Solution

The fourth proportional to 122,921.66, 169,631.82 and 71,944.10 is: 99,282.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,921.66 : 169,631.82 = 71,944.10 : x
  2. Step 2: Convert to fraction form
    122,921.66/169,631.82 = 71,944.10/x
  3. Step 3: Cross multiply
    122,921.66x = 169,631.82 × 71,944.10
  4. Step 4: Simplify right side
    122,921.66x = 12,204,008,621.26
  5. Step 5: Solve for x
    x = 12,204,008,621.26/122,921.66
  6. Step 6: Final answer
    x = 99,282.82

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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.