Home / 138,365.45-207,548.33-38,525.86

Finding the Fourth Proportional to 138,365.45, 207,548.33 and 38,525.86

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Solution

The fourth proportional to 138,365.45, 207,548.33 and 38,525.86 is: 57,788.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,365.45 : 207,548.33 = 38,525.86 : x
  2. Step 2: Convert to fraction form
    138,365.45/207,548.33 = 38,525.86/x
  3. Step 3: Cross multiply
    138,365.45x = 207,548.33 × 38,525.86
  4. Step 4: Simplify right side
    138,365.45x = 7,995,977,971.62
  5. Step 5: Solve for x
    x = 7,995,977,971.62/138,365.45
  6. Step 6: Final answer
    x = 57,788.83

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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.