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Finding the Fourth Proportional to 122,604.44, 169,304.78 and 77,362.70

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Solution

The fourth proportional to 122,604.44, 169,304.78 and 77,362.70 is: 106,830.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,604.44 : 169,304.78 = 77,362.70 : x
  2. Step 2: Convert to fraction form
    122,604.44/169,304.78 = 77,362.70/x
  3. Step 3: Cross multiply
    122,604.44x = 169,304.78 × 77,362.70
  4. Step 4: Simplify right side
    122,604.44x = 13,097,874,250.59
  5. Step 5: Solve for x
    x = 13,097,874,250.59/122,604.44
  6. Step 6: Final answer
    x = 106,830.35

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1.5x scale

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.