Home / 91,635.73-138,077.91-75,360.33

Finding the Fourth Proportional to 91,635.73, 138,077.91 and 75,360.33

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Solution

The fourth proportional to 91,635.73, 138,077.91 and 75,360.33 is: 113,553.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,635.73 : 138,077.91 = 75,360.33 : x
  2. Step 2: Convert to fraction form
    91,635.73/138,077.91 = 75,360.33/x
  3. Step 3: Cross multiply
    91,635.73x = 138,077.91 × 75,360.33
  4. Step 4: Simplify right side
    91,635.73x = 10,405,596,863.31
  5. Step 5: Solve for x
    x = 10,405,596,863.31/91,635.73
  6. Step 6: Final answer
    x = 113,553.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.