Home / 121,754.38-182,672.58-76,723.44

Finding the Fourth Proportional to 121,754.38, 182,672.58 and 76,723.44

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Solution

The fourth proportional to 121,754.38, 182,672.58 and 76,723.44 is: 115,111.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,754.38 : 182,672.58 = 76,723.44 : x
  2. Step 2: Convert to fraction form
    121,754.38/182,672.58 = 76,723.44/x
  3. Step 3: Cross multiply
    121,754.38x = 182,672.58 × 76,723.44
  4. Step 4: Simplify right side
    121,754.38x = 14,015,268,731.28
  5. Step 5: Solve for x
    x = 14,015,268,731.28/121,754.38
  6. Step 6: Final answer
    x = 115,111.00

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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.