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Finding the Fourth Proportional to 122,878.80, 169,466.76 and 95,979.60

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Solution

The fourth proportional to 122,878.80, 169,466.76 and 95,979.60 is: 132,369.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,878.80 : 169,466.76 = 95,979.60 : x
  2. Step 2: Convert to fraction form
    122,878.80/169,466.76 = 95,979.60/x
  3. Step 3: Cross multiply
    122,878.80x = 169,466.76 × 95,979.60
  4. Step 4: Simplify right side
    122,878.80x = 16,265,351,838.10
  5. Step 5: Solve for x
    x = 16,265,351,838.10/122,878.80
  6. Step 6: Final answer
    x = 132,369.06

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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.