Home / 200,696.81-276,856.18-120,100.39

Finding the Fourth Proportional to 200,696.81, 276,856.18 and 120,100.39

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Solution

The fourth proportional to 200,696.81, 276,856.18 and 120,100.39 is: 165,675.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,696.81 : 276,856.18 = 120,100.39 : x
  2. Step 2: Convert to fraction form
    200,696.81/276,856.18 = 120,100.39/x
  3. Step 3: Cross multiply
    200,696.81x = 276,856.18 × 120,100.39
  4. Step 4: Simplify right side
    200,696.81x = 33,250,534,199.52
  5. Step 5: Solve for x
    x = 33,250,534,199.52/200,696.81
  6. Step 6: Final answer
    x = 165,675.45

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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.