Home / 138,467.58-207,702.98-38,621.66

Finding the Fourth Proportional to 138,467.58, 207,702.98 and 38,621.66

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Solution

The fourth proportional to 138,467.58, 207,702.98 and 38,621.66 is: 57,932.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,467.58 : 207,702.98 = 38,621.66 : x
  2. Step 2: Convert to fraction form
    138,467.58/207,702.98 = 38,621.66/x
  3. Step 3: Cross multiply
    138,467.58x = 207,702.98 × 38,621.66
  4. Step 4: Simplify right side
    138,467.58x = 8,021,834,173.33
  5. Step 5: Solve for x
    x = 8,021,834,173.33/138,467.58
  6. Step 6: Final answer
    x = 57,932.94

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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.