Home / 138,467.05-207,702.22-38,621.18

Finding the Fourth Proportional to 138,467.05, 207,702.22 and 38,621.18

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Solution

The fourth proportional to 138,467.05, 207,702.22 and 38,621.18 is: 57,932.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,467.05 : 207,702.22 = 38,621.18 : x
  2. Step 2: Convert to fraction form
    138,467.05/207,702.22 = 38,621.18/x
  3. Step 3: Cross multiply
    138,467.05x = 207,702.22 × 38,621.18
  4. Step 4: Simplify right side
    138,467.05x = 8,021,704,825.02
  5. Step 5: Solve for x
    x = 8,021,704,825.02/138,467.05
  6. Step 6: Final answer
    x = 57,932.23

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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.