Home / 138,328.01-207,544.30-54,148.33

Finding the Fourth Proportional to 138,328.01, 207,544.30 and 54,148.33

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Solution

The fourth proportional to 138,328.01, 207,544.30 and 54,148.33 is: 81,242.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,328.01 : 207,544.30 = 54,148.33 : x
  2. Step 2: Convert to fraction form
    138,328.01/207,544.30 = 54,148.33/x
  3. Step 3: Cross multiply
    138,328.01x = 207,544.30 × 54,148.33
  4. Step 4: Simplify right side
    138,328.01x = 11,238,177,246.02
  5. Step 5: Solve for x
    x = 11,238,177,246.02/138,328.01
  6. Step 6: Final answer
    x = 81,242.96

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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.