Home / 124,786.32-172,235.72-71,102.96

Finding the Fourth Proportional to 124,786.32, 172,235.72 and 71,102.96

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Solution

The fourth proportional to 124,786.32, 172,235.72 and 71,102.96 is: 98,139.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,786.32 : 172,235.72 = 71,102.96 : x
  2. Step 2: Convert to fraction form
    124,786.32/172,235.72 = 71,102.96/x
  3. Step 3: Cross multiply
    124,786.32x = 172,235.72 × 71,102.96
  4. Step 4: Simplify right side
    124,786.32x = 12,246,469,154.22
  5. Step 5: Solve for x
    x = 12,246,469,154.22/124,786.32
  6. Step 6: Final answer
    x = 98,139.52

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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.