Home / 144,311.31-199,158.45-80,654.19

Finding the Fourth Proportional to 144,311.31, 199,158.45 and 80,654.19

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Solution

The fourth proportional to 144,311.31, 199,158.45 and 80,654.19 is: 111,307.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,311.31 : 199,158.45 = 80,654.19 : x
  2. Step 2: Convert to fraction form
    144,311.31/199,158.45 = 80,654.19/x
  3. Step 3: Cross multiply
    144,311.31x = 199,158.45 × 80,654.19
  4. Step 4: Simplify right side
    144,311.31x = 16,062,962,067.34
  5. Step 5: Solve for x
    x = 16,062,962,067.34/144,311.31
  6. Step 6: Final answer
    x = 111,307.72

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1.5x scale

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.