Home / 141,146.16-194,779.80-80,726.64

Finding the Fourth Proportional to 141,146.16, 194,779.80 and 80,726.64

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Solution

The fourth proportional to 141,146.16, 194,779.80 and 80,726.64 is: 111,401.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,146.16 : 194,779.80 = 80,726.64 : x
  2. Step 2: Convert to fraction form
    141,146.16/194,779.80 = 80,726.64/x
  3. Step 3: Cross multiply
    141,146.16x = 194,779.80 × 80,726.64
  4. Step 4: Simplify right side
    141,146.16x = 15,723,918,793.87
  5. Step 5: Solve for x
    x = 15,723,918,793.87/141,146.16
  6. Step 6: Final answer
    x = 111,401.68

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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.