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Finding the Fourth Proportional to 122,002.93, 168,364 and 68,287.93

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Solution

The fourth proportional to 122,002.93, 168,364 and 68,287.93 is: 94,237.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,002.93 : 168,364 = 68,287.93 : x
  2. Step 2: Convert to fraction form
    122,002.93/168,364 = 68,287.93/x
  3. Step 3: Cross multiply
    122,002.93x = 168,364 × 68,287.93
  4. Step 4: Simplify right side
    122,002.93x = 11,497,229,046.52
  5. Step 5: Solve for x
    x = 11,497,229,046.52/122,002.93
  6. Step 6: Final answer
    x = 94,237.32

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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.