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Finding the Fourth Proportional to 169,873.60, 254,637.60 and 99,716.80

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Solution

The fourth proportional to 169,873.60, 254,637.60 and 99,716.80 is: 149,473.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,873.60 : 254,637.60 = 99,716.80 : x
  2. Step 2: Convert to fraction form
    169,873.60/254,637.60 = 99,716.80/x
  3. Step 3: Cross multiply
    169,873.60x = 254,637.60 × 99,716.80
  4. Step 4: Simplify right side
    169,873.60x = 25,391,646,631.68
  5. Step 5: Solve for x
    x = 25,391,646,631.68/169,873.60
  6. Step 6: Final answer
    x = 149,473.77

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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.