Home / 138,788.21-208,189.76-44,025.59

Finding the Fourth Proportional to 138,788.21, 208,189.76 and 44,025.59

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Solution

The fourth proportional to 138,788.21, 208,189.76 and 44,025.59 is: 66,040.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,788.21 : 208,189.76 = 44,025.59 : x
  2. Step 2: Convert to fraction form
    138,788.21/208,189.76 = 44,025.59/x
  3. Step 3: Cross multiply
    138,788.21x = 208,189.76 × 44,025.59
  4. Step 4: Simplify right side
    138,788.21x = 9,165,677,316.30
  5. Step 5: Solve for x
    x = 9,165,677,316.30/138,788.21
  6. Step 6: Final answer
    x = 66,040.75

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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.