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Finding the Fourth Proportional to 169,257.60, 253,886.40 and 99,100.80

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Solution

The fourth proportional to 169,257.60, 253,886.40 and 99,100.80 is: 148,651.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,257.60 : 253,886.40 = 99,100.80 : x
  2. Step 2: Convert to fraction form
    169,257.60/253,886.40 = 99,100.80/x
  3. Step 3: Cross multiply
    169,257.60x = 253,886.40 × 99,100.80
  4. Step 4: Simplify right side
    169,257.60x = 25,160,345,349.12
  5. Step 5: Solve for x
    x = 25,160,345,349.12/169,257.60
  6. Step 6: Final answer
    x = 148,651.20

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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.