Home / 106,816.56-147,249.68-84,082.72

Finding the Fourth Proportional to 106,816.56, 147,249.68 and 84,082.72

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Solution

The fourth proportional to 106,816.56, 147,249.68 and 84,082.72 is: 115,910.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,816.56 : 147,249.68 = 84,082.72 : x
  2. Step 2: Convert to fraction form
    106,816.56/147,249.68 = 84,082.72/x
  3. Step 3: Cross multiply
    106,816.56x = 147,249.68 × 84,082.72
  4. Step 4: Simplify right side
    106,816.56x = 12,381,153,613.53
  5. Step 5: Solve for x
    x = 12,381,153,613.53/106,816.56
  6. Step 6: Final answer
    x = 115,910.43

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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.