Home / 189,136.20-261,006.60-104,253.12

Finding the Fourth Proportional to 189,136.20, 261,006.60 and 104,253.12

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Solution

The fourth proportional to 189,136.20, 261,006.60 and 104,253.12 is: 143,868.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,136.20 : 261,006.60 = 104,253.12 : x
  2. Step 2: Convert to fraction form
    189,136.20/261,006.60 = 104,253.12/x
  3. Step 3: Cross multiply
    189,136.20x = 261,006.60 × 104,253.12
  4. Step 4: Simplify right side
    189,136.20x = 27,210,752,390.59
  5. Step 5: Solve for x
    x = 27,210,752,390.59/189,136.20
  6. Step 6: Final answer
    x = 143,868.56

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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.