Home / 120,318.68-165,862.94-91,588.29

Finding the Fourth Proportional to 120,318.68, 165,862.94 and 91,588.29

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Solution

The fourth proportional to 120,318.68, 165,862.94 and 91,588.29 is: 126,257.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,318.68 : 165,862.94 = 91,588.29 : x
  2. Step 2: Convert to fraction form
    120,318.68/165,862.94 = 91,588.29/x
  3. Step 3: Cross multiply
    120,318.68x = 165,862.94 × 91,588.29
  4. Step 4: Simplify right side
    120,318.68x = 15,191,102,591.03
  5. Step 5: Solve for x
    x = 15,191,102,591.03/120,318.68
  6. Step 6: Final answer
    x = 126,257.23

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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.