Home / 108,780.67-163,053.01-42,201.10

Finding the Fourth Proportional to 108,780.67, 163,053.01 and 42,201.10

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Solution

The fourth proportional to 108,780.67, 163,053.01 and 42,201.10 is: 63,255.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,780.67 : 163,053.01 = 42,201.10 : x
  2. Step 2: Convert to fraction form
    108,780.67/163,053.01 = 42,201.10/x
  3. Step 3: Cross multiply
    108,780.67x = 163,053.01 × 42,201.10
  4. Step 4: Simplify right side
    108,780.67x = 6,881,016,380.31
  5. Step 5: Solve for x
    x = 6,881,016,380.31/108,780.67
  6. Step 6: Final answer
    x = 63,255.87

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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.