Home / 138,038.27-207,062.01-38,190.10

Finding the Fourth Proportional to 138,038.27, 207,062.01 and 38,190.10

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Solution

The fourth proportional to 138,038.27, 207,062.01 and 38,190.10 is: 57,286.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,038.27 : 207,062.01 = 38,190.10 : x
  2. Step 2: Convert to fraction form
    138,038.27/207,062.01 = 38,190.10/x
  3. Step 3: Cross multiply
    138,038.27x = 207,062.01 × 38,190.10
  4. Step 4: Simplify right side
    138,038.27x = 7,907,718,868.10
  5. Step 5: Solve for x
    x = 7,907,718,868.10/138,038.27
  6. Step 6: Final answer
    x = 57,286.42

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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.