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Finding the Fourth Proportional to 158,489.68, 218,785.44 and 110,929.72

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Solution

The fourth proportional to 158,489.68, 218,785.44 and 110,929.72 is: 153,131.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,489.68 : 218,785.44 = 110,929.72 : x
  2. Step 2: Convert to fraction form
    158,489.68/218,785.44 = 110,929.72/x
  3. Step 3: Cross multiply
    158,489.68x = 218,785.44 × 110,929.72
  4. Step 4: Simplify right side
    158,489.68x = 24,269,807,599.28
  5. Step 5: Solve for x
    x = 24,269,807,599.28/158,489.68
  6. Step 6: Final answer
    x = 153,131.78

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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.