Home / 141,932.11-212,657.16-85,653.97

Finding the Fourth Proportional to 141,932.11, 212,657.16 and 85,653.97

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Solution

The fourth proportional to 141,932.11, 212,657.16 and 85,653.97 is: 128,335.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,932.11 : 212,657.16 = 85,653.97 : x
  2. Step 2: Convert to fraction form
    141,932.11/212,657.16 = 85,653.97/x
  3. Step 3: Cross multiply
    141,932.11x = 212,657.16 × 85,653.97
  4. Step 4: Simplify right side
    141,932.11x = 18,214,930,002.93
  5. Step 5: Solve for x
    x = 18,214,930,002.93/141,932.11
  6. Step 6: Final answer
    x = 128,335.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.