Home / 108,480.66-162,761.01-45,307.38

Finding the Fourth Proportional to 108,480.66, 162,761.01 and 45,307.38

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Solution

The fourth proportional to 108,480.66, 162,761.01 and 45,307.38 is: 67,977.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,480.66 : 162,761.01 = 45,307.38 : x
  2. Step 2: Convert to fraction form
    108,480.66/162,761.01 = 45,307.38/x
  3. Step 3: Cross multiply
    108,480.66x = 162,761.01 × 45,307.38
  4. Step 4: Simplify right side
    108,480.66x = 7,374,274,929.25
  5. Step 5: Solve for x
    x = 7,374,274,929.25/108,480.66
  6. Step 6: Final answer
    x = 67,977.78

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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.