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Finding the Fourth Proportional to 155,734, 214,913.24 and 88,666

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Solution

The fourth proportional to 155,734, 214,913.24 and 88,666 is: 122,359.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,734 : 214,913.24 = 88,666 : x
  2. Step 2: Convert to fraction form
    155,734/214,913.24 = 88,666/x
  3. Step 3: Cross multiply
    155,734x = 214,913.24 × 88,666
  4. Step 4: Simplify right side
    155,734x = 19,055,497,337.84
  5. Step 5: Solve for x
    x = 19,055,497,337.84/155,734
  6. Step 6: Final answer
    x = 122,359.26

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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.