Home / 89,930.56-124,119.18-85,944.64

Finding the Fourth Proportional to 89,930.56, 124,119.18 and 85,944.64

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Solution

The fourth proportional to 89,930.56, 124,119.18 and 85,944.64 is: 118,617.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,930.56 : 124,119.18 = 85,944.64 : x
  2. Step 2: Convert to fraction form
    89,930.56/124,119.18 = 85,944.64/x
  3. Step 3: Cross multiply
    89,930.56x = 124,119.18 × 85,944.64
  4. Step 4: Simplify right side
    89,930.56x = 10,667,378,242.20
  5. Step 5: Solve for x
    x = 10,667,378,242.20/89,930.56
  6. Step 6: Final answer
    x = 118,617.95

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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.