Home / 102,077.46-140,871.56-56,760.03

Finding the Fourth Proportional to 102,077.46, 140,871.56 and 56,760.03

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Solution

The fourth proportional to 102,077.46, 140,871.56 and 56,760.03 is: 78,331.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,077.46 : 140,871.56 = 56,760.03 : x
  2. Step 2: Convert to fraction form
    102,077.46/140,871.56 = 56,760.03/x
  3. Step 3: Cross multiply
    102,077.46x = 140,871.56 × 56,760.03
  4. Step 4: Simplify right side
    102,077.46x = 7,995,873,687.95
  5. Step 5: Solve for x
    x = 7,995,873,687.95/102,077.46
  6. Step 6: Final answer
    x = 78,331.43

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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.