Home / 138,849.55-191,608.51-82,260.93

Finding the Fourth Proportional to 138,849.55, 191,608.51 and 82,260.93

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Solution

The fourth proportional to 138,849.55, 191,608.51 and 82,260.93 is: 113,517.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,849.55 : 191,608.51 = 82,260.93 : x
  2. Step 2: Convert to fraction form
    138,849.55/191,608.51 = 82,260.93/x
  3. Step 3: Cross multiply
    138,849.55x = 191,608.51 × 82,260.93
  4. Step 4: Simplify right side
    138,849.55x = 15,761,894,228.51
  5. Step 5: Solve for x
    x = 15,761,894,228.51/138,849.55
  6. Step 6: Final answer
    x = 113,517.79

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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.