Home / 145,198.80-200,453.76-87,847.92

Finding the Fourth Proportional to 145,198.80, 200,453.76 and 87,847.92

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Solution

The fourth proportional to 145,198.80, 200,453.76 and 87,847.92 is: 121,278.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,198.80 : 200,453.76 = 87,847.92 : x
  2. Step 2: Convert to fraction form
    145,198.80/200,453.76 = 87,847.92/x
  3. Step 3: Cross multiply
    145,198.80x = 200,453.76 × 87,847.92
  4. Step 4: Simplify right side
    145,198.80x = 17,609,445,872.18
  5. Step 5: Solve for x
    x = 17,609,445,872.18/145,198.80
  6. Step 6: Final answer
    x = 121,278.18

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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.