Home / 136,153.28-204,043.08-86,143.85

Finding the Fourth Proportional to 136,153.28, 204,043.08 and 86,143.85

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Solution

The fourth proportional to 136,153.28, 204,043.08 and 86,143.85 is: 129,097.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,153.28 : 204,043.08 = 86,143.85 : x
  2. Step 2: Convert to fraction form
    136,153.28/204,043.08 = 86,143.85/x
  3. Step 3: Cross multiply
    136,153.28x = 204,043.08 × 86,143.85
  4. Step 4: Simplify right side
    136,153.28x = 17,577,056,650.27
  5. Step 5: Solve for x
    x = 17,577,056,650.27/136,153.28
  6. Step 6: Final answer
    x = 129,097.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.