Home / 404,142.66-606,209.13-138,089.25

Finding the Fourth Proportional to 404,142.66, 606,209.13 and 138,089.25

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Solution

The fourth proportional to 404,142.66, 606,209.13 and 138,089.25 is: 207,132.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,142.66 : 606,209.13 = 138,089.25 : x
  2. Step 2: Convert to fraction form
    404,142.66/606,209.13 = 138,089.25/x
  3. Step 3: Cross multiply
    404,142.66x = 606,209.13 × 138,089.25
  4. Step 4: Simplify right side
    404,142.66x = 83,710,964,104.85
  5. Step 5: Solve for x
    x = 83,710,964,104.85/404,142.66
  6. Step 6: Final answer
    x = 207,132.21

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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.