Home / 100,652.36-150,979.08-30,531.74

Finding the Fourth Proportional to 100,652.36, 150,979.08 and 30,531.74

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Solution

The fourth proportional to 100,652.36, 150,979.08 and 30,531.74 is: 45,797.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,652.36 : 150,979.08 = 30,531.74 : x
  2. Step 2: Convert to fraction form
    100,652.36/150,979.08 = 30,531.74/x
  3. Step 3: Cross multiply
    100,652.36x = 150,979.08 × 30,531.74
  4. Step 4: Simplify right side
    100,652.36x = 4,609,654,016.00
  5. Step 5: Solve for x
    x = 4,609,654,016.00/100,652.36
  6. Step 6: Final answer
    x = 45,797.77

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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.