Home / 155,129.14-214,078.09-88,061.14

Finding the Fourth Proportional to 155,129.14, 214,078.09 and 88,061.14

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Solution

The fourth proportional to 155,129.14, 214,078.09 and 88,061.14 is: 121,524.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,129.14 : 214,078.09 = 88,061.14 : x
  2. Step 2: Convert to fraction form
    155,129.14/214,078.09 = 88,061.14/x
  3. Step 3: Cross multiply
    155,129.14x = 214,078.09 × 88,061.14
  4. Step 4: Simplify right side
    155,129.14x = 18,851,959,143.73
  5. Step 5: Solve for x
    x = 18,851,959,143.73/155,129.14
  6. Step 6: Final answer
    x = 121,524.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.