Home / 200,191.12-276,254.60-115,320.40

Finding the Fourth Proportional to 200,191.12, 276,254.60 and 115,320.40

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Solution

The fourth proportional to 200,191.12, 276,254.60 and 115,320.40 is: 159,136.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,191.12 : 276,254.60 = 115,320.40 : x
  2. Step 2: Convert to fraction form
    200,191.12/276,254.60 = 115,320.40/x
  3. Step 3: Cross multiply
    200,191.12x = 276,254.60 × 115,320.40
  4. Step 4: Simplify right side
    200,191.12x = 31,857,790,973.84
  5. Step 5: Solve for x
    x = 31,857,790,973.84/200,191.12
  6. Step 6: Final answer
    x = 159,136.88

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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.