Home / 220,082.07-303,714.51-129,441.85

Finding the Fourth Proportional to 220,082.07, 303,714.51 and 129,441.85

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Solution

The fourth proportional to 220,082.07, 303,714.51 and 129,441.85 is: 178,630.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,082.07 : 303,714.51 = 129,441.85 : x
  2. Step 2: Convert to fraction form
    220,082.07/303,714.51 = 129,441.85/x
  3. Step 3: Cross multiply
    220,082.07x = 303,714.51 × 129,441.85
  4. Step 4: Simplify right side
    220,082.07x = 39,313,368,046.24
  5. Step 5: Solve for x
    x = 39,313,368,046.24/220,082.07
  6. Step 6: Final answer
    x = 178,630.49

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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.