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Finding the Fourth Proportional to 169,864.60, 254,796.90 and 130,619.80

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Solution

The fourth proportional to 169,864.60, 254,796.90 and 130,619.80 is: 195,929.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,864.60 : 254,796.90 = 130,619.80 : x
  2. Step 2: Convert to fraction form
    169,864.60/254,796.90 = 130,619.80/x
  3. Step 3: Cross multiply
    169,864.60x = 254,796.90 × 130,619.80
  4. Step 4: Simplify right side
    169,864.60x = 33,281,520,118.62
  5. Step 5: Solve for x
    x = 33,281,520,118.62/169,864.60
  6. Step 6: Final answer
    x = 195,929.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.