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Finding the Fourth Proportional to 122,702.04, 169,333.56 and 74,976.84

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Solution

The fourth proportional to 122,702.04, 169,333.56 and 74,976.84 is: 103,470.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,702.04 : 169,333.56 = 74,976.84 : x
  2. Step 2: Convert to fraction form
    122,702.04/169,333.56 = 74,976.84/x
  3. Step 3: Cross multiply
    122,702.04x = 169,333.56 × 74,976.84
  4. Step 4: Simplify right side
    122,702.04x = 12,696,095,234.75
  5. Step 5: Solve for x
    x = 12,696,095,234.75/122,702.04
  6. Step 6: Final answer
    x = 103,470.94

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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.