Home / 112,517.40-168,589.08-79,167.48

Finding the Fourth Proportional to 112,517.40, 168,589.08 and 79,167.48

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Solution

The fourth proportional to 112,517.40, 168,589.08 and 79,167.48 is: 118,619.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,517.40 : 168,589.08 = 79,167.48 : x
  2. Step 2: Convert to fraction form
    112,517.40/168,589.08 = 79,167.48/x
  3. Step 3: Cross multiply
    112,517.40x = 168,589.08 × 79,167.48
  4. Step 4: Simplify right side
    112,517.40x = 13,346,772,619.12
  5. Step 5: Solve for x
    x = 13,346,772,619.12/112,517.40
  6. Step 6: Final answer
    x = 118,619.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.