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Finding the Fourth Proportional to 155,291.04, 214,301.56 and 88,223.04

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Solution

The fourth proportional to 155,291.04, 214,301.56 and 88,223.04 is: 121,747.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,291.04 : 214,301.56 = 88,223.04 : x
  2. Step 2: Convert to fraction form
    155,291.04/214,301.56 = 88,223.04/x
  3. Step 3: Cross multiply
    155,291.04x = 214,301.56 × 88,223.04
  4. Step 4: Simplify right side
    155,291.04x = 18,906,335,099.94
  5. Step 5: Solve for x
    x = 18,906,335,099.94/155,291.04
  6. Step 6: Final answer
    x = 121,747.75

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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.