Home / 200,320.76-276,629.94-128,824.92

Finding the Fourth Proportional to 200,320.76, 276,629.94 and 128,824.92

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Solution

The fourth proportional to 200,320.76, 276,629.94 and 128,824.92 is: 177,898.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,320.76 : 276,629.94 = 128,824.92 : x
  2. Step 2: Convert to fraction form
    200,320.76/276,629.94 = 128,824.92/x
  3. Step 3: Cross multiply
    200,320.76x = 276,629.94 × 128,824.92
  4. Step 4: Simplify right side
    200,320.76x = 35,636,829,890.10
  5. Step 5: Solve for x
    x = 35,636,829,890.10/200,320.76
  6. Step 6: Final answer
    x = 177,898.84

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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.