Home / 200,074.80-276,140.16-128,544.24

Finding the Fourth Proportional to 200,074.80, 276,140.16 and 128,544.24

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Solution

The fourth proportional to 200,074.80, 276,140.16 and 128,544.24 is: 177,414.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,074.80 : 276,140.16 = 128,544.24 : x
  2. Step 2: Convert to fraction form
    200,074.80/276,140.16 = 128,544.24/x
  3. Step 3: Cross multiply
    200,074.80x = 276,140.16 × 128,544.24
  4. Step 4: Simplify right side
    200,074.80x = 35,496,227,000.68
  5. Step 5: Solve for x
    x = 35,496,227,000.68/200,074.80
  6. Step 6: Final answer
    x = 177,414.78

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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.