Home / 108,030.80-162,046.20-68,172.73

Finding the Fourth Proportional to 108,030.80, 162,046.20 and 68,172.73

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Solution

The fourth proportional to 108,030.80, 162,046.20 and 68,172.73 is: 102,259.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,030.80 : 162,046.20 = 68,172.73 : x
  2. Step 2: Convert to fraction form
    108,030.80/162,046.20 = 68,172.73/x
  3. Step 3: Cross multiply
    108,030.80x = 162,046.20 × 68,172.73
  4. Step 4: Simplify right side
    108,030.80x = 11,047,131,840.13
  5. Step 5: Solve for x
    x = 11,047,131,840.13/108,030.80
  6. Step 6: Final answer
    x = 102,259.10

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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.