Home / 123,731.56-170,760.18-70,033.72

Finding the Fourth Proportional to 123,731.56, 170,760.18 and 70,033.72

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Solution

The fourth proportional to 123,731.56, 170,760.18 and 70,033.72 is: 96,652.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,731.56 : 170,760.18 = 70,033.72 : x
  2. Step 2: Convert to fraction form
    123,731.56/170,760.18 = 70,033.72/x
  3. Step 3: Cross multiply
    123,731.56x = 170,760.18 × 70,033.72
  4. Step 4: Simplify right side
    123,731.56x = 11,958,970,633.27
  5. Step 5: Solve for x
    x = 11,958,970,633.27/123,731.56
  6. Step 6: Final answer
    x = 96,652.55

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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.