Home / 126,444.72-189,676.80-37,691.28

Finding the Fourth Proportional to 126,444.72, 189,676.80 and 37,691.28

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Solution

The fourth proportional to 126,444.72, 189,676.80 and 37,691.28 is: 56,539.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,444.72 : 189,676.80 = 37,691.28 : x
  2. Step 2: Convert to fraction form
    126,444.72/189,676.80 = 37,691.28/x
  3. Step 3: Cross multiply
    126,444.72x = 189,676.80 × 37,691.28
  4. Step 4: Simplify right side
    126,444.72x = 7,149,161,378.30
  5. Step 5: Solve for x
    x = 7,149,161,378.30/126,444.72
  6. Step 6: Final answer
    x = 56,539.82

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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.