Home / 123,399.46-185,099.78-38,009.31

Finding the Fourth Proportional to 123,399.46, 185,099.78 and 38,009.31

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Solution

The fourth proportional to 123,399.46, 185,099.78 and 38,009.31 is: 57,014.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,399.46 : 185,099.78 = 38,009.31 : x
  2. Step 2: Convert to fraction form
    123,399.46/185,099.78 = 38,009.31/x
  3. Step 3: Cross multiply
    123,399.46x = 185,099.78 × 38,009.31
  4. Step 4: Simplify right side
    123,399.46x = 7,035,514,918.95
  5. Step 5: Solve for x
    x = 7,035,514,918.95/123,399.46
  6. Step 6: Final answer
    x = 57,014.15

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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.