Home / 108,379.97-162,359.62-79,865.18

Finding the Fourth Proportional to 108,379.97, 162,359.62 and 79,865.18

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Solution

The fourth proportional to 108,379.97, 162,359.62 and 79,865.18 is: 119,642.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,379.97 : 162,359.62 = 79,865.18 : x
  2. Step 2: Convert to fraction form
    108,379.97/162,359.62 = 79,865.18/x
  3. Step 3: Cross multiply
    108,379.97x = 162,359.62 × 79,865.18
  4. Step 4: Simplify right side
    108,379.97x = 12,966,880,276.03
  5. Step 5: Solve for x
    x = 12,966,880,276.03/108,379.97
  6. Step 6: Final answer
    x = 119,642.77

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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.