Home / 202,013.23-278,778.83-121,486.88

Finding the Fourth Proportional to 202,013.23, 278,778.83 and 121,486.88

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Solution

The fourth proportional to 202,013.23, 278,778.83 and 121,486.88 is: 167,652.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,013.23 : 278,778.83 = 121,486.88 : x
  2. Step 2: Convert to fraction form
    202,013.23/278,778.83 = 121,486.88/x
  3. Step 3: Cross multiply
    202,013.23x = 278,778.83 × 121,486.88
  4. Step 4: Simplify right side
    202,013.23x = 33,867,970,266.75
  5. Step 5: Solve for x
    x = 33,867,970,266.75/202,013.23
  6. Step 6: Final answer
    x = 167,652.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.