Home / 138,064.20-207,096.30-49,320.60

Finding the Fourth Proportional to 138,064.20, 207,096.30 and 49,320.60

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Solution

The fourth proportional to 138,064.20, 207,096.30 and 49,320.60 is: 73,980.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,064.20 : 207,096.30 = 49,320.60 : x
  2. Step 2: Convert to fraction form
    138,064.20/207,096.30 = 49,320.60/x
  3. Step 3: Cross multiply
    138,064.20x = 207,096.30 × 49,320.60
  4. Step 4: Simplify right side
    138,064.20x = 10,214,113,773.78
  5. Step 5: Solve for x
    x = 10,214,113,773.78/138,064.20
  6. Step 6: Final answer
    x = 73,980.90

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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.