Home / 124,747.67-172,228.07-81,181.73

Finding the Fourth Proportional to 124,747.67, 172,228.07 and 81,181.73

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Solution

The fourth proportional to 124,747.67, 172,228.07 and 81,181.73 is: 112,080.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,747.67 : 172,228.07 = 81,181.73 : x
  2. Step 2: Convert to fraction form
    124,747.67/172,228.07 = 81,181.73/x
  3. Step 3: Cross multiply
    124,747.67x = 172,228.07 × 81,181.73
  4. Step 4: Simplify right side
    124,747.67x = 13,981,771,410.11
  5. Step 5: Solve for x
    x = 13,981,771,410.11/124,747.67
  6. Step 6: Final answer
    x = 112,080.43

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1.5x scale

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.