Home / 138,182.74-206,196.38-123,289.26

Finding the Fourth Proportional to 138,182.74, 206,196.38 and 123,289.26

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Solution

The fourth proportional to 138,182.74, 206,196.38 and 123,289.26 is: 183,972.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,182.74 : 206,196.38 = 123,289.26 : x
  2. Step 2: Convert to fraction form
    138,182.74/206,196.38 = 123,289.26/x
  3. Step 3: Cross multiply
    138,182.74x = 206,196.38 × 123,289.26
  4. Step 4: Simplify right side
    138,182.74x = 25,421,799,104.88
  5. Step 5: Solve for x
    x = 25,421,799,104.88/138,182.74
  6. Step 6: Final answer
    x = 183,972.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.