Home / 202,164.86-278,977.57-121,576.75

Finding the Fourth Proportional to 202,164.86, 278,977.57 and 121,576.75

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Solution

The fourth proportional to 202,164.86, 278,977.57 and 121,576.75 is: 167,769.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,164.86 : 278,977.57 = 121,576.75 : x
  2. Step 2: Convert to fraction form
    202,164.86/278,977.57 = 121,576.75/x
  3. Step 3: Cross multiply
    202,164.86x = 278,977.57 × 121,576.75
  4. Step 4: Simplify right side
    202,164.86x = 33,917,185,282.11
  5. Step 5: Solve for x
    x = 33,917,185,282.11/202,164.86
  6. Step 6: Final answer
    x = 167,769.93

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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.