Home / 138,749.33-191,474.68-75,087.13

Finding the Fourth Proportional to 138,749.33, 191,474.68 and 75,087.13

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Solution

The fourth proportional to 138,749.33, 191,474.68 and 75,087.13 is: 103,620.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,749.33 : 191,474.68 = 75,087.13 : x
  2. Step 2: Convert to fraction form
    138,749.33/191,474.68 = 75,087.13/x
  3. Step 3: Cross multiply
    138,749.33x = 191,474.68 × 75,087.13
  4. Step 4: Simplify right side
    138,749.33x = 14,377,283,813.43
  5. Step 5: Solve for x
    x = 14,377,283,813.43/138,749.33
  6. Step 6: Final answer
    x = 103,620.57

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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.