Home / 108,267.20-162,573.60-78,891.20

Finding the Fourth Proportional to 108,267.20, 162,573.60 and 78,891.20

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Solution

The fourth proportional to 108,267.20, 162,573.60 and 78,891.20 is: 118,462.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,267.20 : 162,573.60 = 78,891.20 : x
  2. Step 2: Convert to fraction form
    108,267.20/162,573.60 = 78,891.20/x
  3. Step 3: Cross multiply
    108,267.20x = 162,573.60 × 78,891.20
  4. Step 4: Simplify right side
    108,267.20x = 12,825,626,392.32
  5. Step 5: Solve for x
    x = 12,825,626,392.32/108,267.20
  6. Step 6: Final answer
    x = 118,462.71

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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.