Home / 138,813.14-191,562.20-75,150.94

Finding the Fourth Proportional to 138,813.14, 191,562.20 and 75,150.94

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Solution

The fourth proportional to 138,813.14, 191,562.20 and 75,150.94 is: 103,708.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,813.14 : 191,562.20 = 75,150.94 : x
  2. Step 2: Convert to fraction form
    138,813.14/191,562.20 = 75,150.94/x
  3. Step 3: Cross multiply
    138,813.14x = 191,562.20 × 75,150.94
  4. Step 4: Simplify right side
    138,813.14x = 14,396,079,398.47
  5. Step 5: Solve for x
    x = 14,396,079,398.47/138,813.14
  6. Step 6: Final answer
    x = 103,708.33

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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.