Home / 108,431.20-162,646.80-34,559.20

Finding the Fourth Proportional to 108,431.20, 162,646.80 and 34,559.20

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Solution

The fourth proportional to 108,431.20, 162,646.80 and 34,559.20 is: 51,838.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,431.20 : 162,646.80 = 34,559.20 : x
  2. Step 2: Convert to fraction form
    108,431.20/162,646.80 = 34,559.20/x
  3. Step 3: Cross multiply
    108,431.20x = 162,646.80 × 34,559.20
  4. Step 4: Simplify right side
    108,431.20x = 5,620,943,290.56
  5. Step 5: Solve for x
    x = 5,620,943,290.56/108,431.20
  6. Step 6: Final answer
    x = 51,838.80

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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.