Home / 138,600.32-207,903.72-45,113.36

Finding the Fourth Proportional to 138,600.32, 207,903.72 and 45,113.36

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Solution

The fourth proportional to 138,600.32, 207,903.72 and 45,113.36 is: 67,671.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,600.32 : 207,903.72 = 45,113.36 : x
  2. Step 2: Convert to fraction form
    138,600.32/207,903.72 = 45,113.36/x
  3. Step 3: Cross multiply
    138,600.32x = 207,903.72 × 45,113.36
  4. Step 4: Simplify right side
    138,600.32x = 9,379,235,365.70
  5. Step 5: Solve for x
    x = 9,379,235,365.70/138,600.32
  6. Step 6: Final answer
    x = 67,671.09

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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.