Home / 147,519.05-203,545.78-86,253.44

Finding the Fourth Proportional to 147,519.05, 203,545.78 and 86,253.44

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Solution

The fourth proportional to 147,519.05, 203,545.78 and 86,253.44 is: 119,011.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,519.05 : 203,545.78 = 86,253.44 : x
  2. Step 2: Convert to fraction form
    147,519.05/203,545.78 = 86,253.44/x
  3. Step 3: Cross multiply
    147,519.05x = 203,545.78 × 86,253.44
  4. Step 4: Simplify right side
    147,519.05x = 17,556,522,489.12
  5. Step 5: Solve for x
    x = 17,556,522,489.12/147,519.05
  6. Step 6: Final answer
    x = 119,011.90

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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.