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Finding the Fourth Proportional to 103,062.60, 154,530.72 and 43,864.56

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Solution

The fourth proportional to 103,062.60, 154,530.72 and 43,864.56 is: 65,769.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,062.60 : 154,530.72 = 43,864.56 : x
  2. Step 2: Convert to fraction form
    103,062.60/154,530.72 = 43,864.56/x
  3. Step 3: Cross multiply
    103,062.60x = 154,530.72 × 43,864.56
  4. Step 4: Simplify right side
    103,062.60x = 6,778,422,039.28
  5. Step 5: Solve for x
    x = 6,778,422,039.28/103,062.60
  6. Step 6: Final answer
    x = 65,769.95

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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.