Home / 112,517.20-168,581.40-53,225.20

Finding the Fourth Proportional to 112,517.20, 168,581.40 and 53,225.20

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Solution

The fourth proportional to 112,517.20, 168,581.40 and 53,225.20 is: 79,745.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,517.20 : 168,581.40 = 53,225.20 : x
  2. Step 2: Convert to fraction form
    112,517.20/168,581.40 = 53,225.20/x
  3. Step 3: Cross multiply
    112,517.20x = 168,581.40 × 53,225.20
  4. Step 4: Simplify right side
    112,517.20x = 8,972,778,731.28
  5. Step 5: Solve for x
    x = 8,972,778,731.28/112,517.20
  6. Step 6: Final answer
    x = 79,745.84

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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.