Home / 100,043.56-137,925.01-64,171.29

Finding the Fourth Proportional to 100,043.56, 137,925.01 and 64,171.29

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Solution

The fourth proportional to 100,043.56, 137,925.01 and 64,171.29 is: 88,469.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,043.56 : 137,925.01 = 64,171.29 : x
  2. Step 2: Convert to fraction form
    100,043.56/137,925.01 = 64,171.29/x
  3. Step 3: Cross multiply
    100,043.56x = 137,925.01 × 64,171.29
  4. Step 4: Simplify right side
    100,043.56x = 8,850,825,814.96
  5. Step 5: Solve for x
    x = 8,850,825,814.96/100,043.56
  6. Step 6: Final answer
    x = 88,469.72

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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.