Home / 148,007.12-204,246.78-80,939.12

Finding the Fourth Proportional to 148,007.12, 204,246.78 and 80,939.12

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Solution

The fourth proportional to 148,007.12, 204,246.78 and 80,939.12 is: 111,694.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,007.12 : 204,246.78 = 80,939.12 : x
  2. Step 2: Convert to fraction form
    148,007.12/204,246.78 = 80,939.12/x
  3. Step 3: Cross multiply
    148,007.12x = 204,246.78 × 80,939.12
  4. Step 4: Simplify right side
    148,007.12x = 16,531,554,636.03
  5. Step 5: Solve for x
    x = 16,531,554,636.03/148,007.12
  6. Step 6: Final answer
    x = 111,694.32

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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.