Home / 138,325.01-207,539.80-54,145.33

Finding the Fourth Proportional to 138,325.01, 207,539.80 and 54,145.33

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Solution

The fourth proportional to 138,325.01, 207,539.80 and 54,145.33 is: 81,238.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,325.01 : 207,539.80 = 54,145.33 : x
  2. Step 2: Convert to fraction form
    138,325.01/207,539.80 = 54,145.33/x
  3. Step 3: Cross multiply
    138,325.01x = 207,539.80 × 54,145.33
  4. Step 4: Simplify right side
    138,325.01x = 11,237,310,304.92
  5. Step 5: Solve for x
    x = 11,237,310,304.92/138,325.01
  6. Step 6: Final answer
    x = 81,238.46

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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.