Home / 200,029.80-276,078.06-128,499.24

Finding the Fourth Proportional to 200,029.80, 276,078.06 and 128,499.24

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Solution

The fourth proportional to 200,029.80, 276,078.06 and 128,499.24 is: 177,352.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,029.80 : 276,078.06 = 128,499.24 : x
  2. Step 2: Convert to fraction form
    200,029.80/276,078.06 = 128,499.24/x
  3. Step 3: Cross multiply
    200,029.80x = 276,078.06 × 128,499.24
  4. Step 4: Simplify right side
    200,029.80x = 35,475,820,890.67
  5. Step 5: Solve for x
    x = 35,475,820,890.67/200,029.80
  6. Step 6: Final answer
    x = 177,352.68

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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.