Home / 181,139.90-271,634-68,758.18

Finding the Fourth Proportional to 181,139.90, 271,634 and 68,758.18

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Solution

The fourth proportional to 181,139.90, 271,634 and 68,758.18 is: 103,108.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,139.90 : 271,634 = 68,758.18 : x
  2. Step 2: Convert to fraction form
    181,139.90/271,634 = 68,758.18/x
  3. Step 3: Cross multiply
    181,139.90x = 271,634 × 68,758.18
  4. Step 4: Simplify right side
    181,139.90x = 18,677,059,466.12
  5. Step 5: Solve for x
    x = 18,677,059,466.12/181,139.90
  6. Step 6: Final answer
    x = 103,108.48

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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.