Home / 147,869.10-221,803.65-100,629.90

Finding the Fourth Proportional to 147,869.10, 221,803.65 and 100,629.90

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Solution

The fourth proportional to 147,869.10, 221,803.65 and 100,629.90 is: 150,944.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,869.10 : 221,803.65 = 100,629.90 : x
  2. Step 2: Convert to fraction form
    147,869.10/221,803.65 = 100,629.90/x
  3. Step 3: Cross multiply
    147,869.10x = 221,803.65 × 100,629.90
  4. Step 4: Simplify right side
    147,869.10x = 22,320,079,119.14
  5. Step 5: Solve for x
    x = 22,320,079,119.14/147,869.10
  6. Step 6: Final answer
    x = 150,944.85

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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.