Home / 200,166.72-276,099.84-128,433.12

Finding the Fourth Proportional to 200,166.72, 276,099.84 and 128,433.12

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Solution

The fourth proportional to 200,166.72, 276,099.84 and 128,433.12 is: 177,154.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,166.72 : 276,099.84 = 128,433.12 : x
  2. Step 2: Convert to fraction form
    200,166.72/276,099.84 = 128,433.12/x
  3. Step 3: Cross multiply
    200,166.72x = 276,099.84 × 128,433.12
  4. Step 4: Simplify right side
    200,166.72x = 35,460,363,882.70
  5. Step 5: Solve for x
    x = 35,460,363,882.70/200,166.72
  6. Step 6: Final answer
    x = 177,154.14

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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.