Home / 126,753.18-190,129.24-31,983.58

Finding the Fourth Proportional to 126,753.18, 190,129.24 and 31,983.58

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Solution

The fourth proportional to 126,753.18, 190,129.24 and 31,983.58 is: 47,975.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,753.18 : 190,129.24 = 31,983.58 : x
  2. Step 2: Convert to fraction form
    126,753.18/190,129.24 = 31,983.58/x
  3. Step 3: Cross multiply
    126,753.18x = 190,129.24 × 31,983.58
  4. Step 4: Simplify right side
    126,753.18x = 6,081,013,757.88
  5. Step 5: Solve for x
    x = 6,081,013,757.88/126,753.18
  6. Step 6: Final answer
    x = 47,975.24

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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.