Home / 151,751.68-209,426.66-87,241.56

Finding the Fourth Proportional to 151,751.68, 209,426.66 and 87,241.56

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Solution

The fourth proportional to 151,751.68, 209,426.66 and 87,241.56 is: 120,398.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,751.68 : 209,426.66 = 87,241.56 : x
  2. Step 2: Convert to fraction form
    151,751.68/209,426.66 = 87,241.56/x
  3. Step 3: Cross multiply
    151,751.68x = 209,426.66 × 87,241.56
  4. Step 4: Simplify right side
    151,751.68x = 18,270,708,120.32
  5. Step 5: Solve for x
    x = 18,270,708,120.32/151,751.68
  6. Step 6: Final answer
    x = 120,398.72

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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.