Home / 102,884.61-141,932.81-66,597.76

Finding the Fourth Proportional to 102,884.61, 141,932.81 and 66,597.76

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Solution

The fourth proportional to 102,884.61, 141,932.81 and 66,597.76 is: 91,873.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,884.61 : 141,932.81 = 66,597.76 : x
  2. Step 2: Convert to fraction form
    102,884.61/141,932.81 = 66,597.76/x
  3. Step 3: Cross multiply
    102,884.61x = 141,932.81 × 66,597.76
  4. Step 4: Simplify right side
    102,884.61x = 9,452,407,488.09
  5. Step 5: Solve for x
    x = 9,452,407,488.09/102,884.61
  6. Step 6: Final answer
    x = 91,873.87

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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.