Home / 168,022.50-231,870.36-91,541.38

Finding the Fourth Proportional to 168,022.50, 231,870.36 and 91,541.38

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Solution

The fourth proportional to 168,022.50, 231,870.36 and 91,541.38 is: 126,326.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,022.50 : 231,870.36 = 91,541.38 : x
  2. Step 2: Convert to fraction form
    168,022.50/231,870.36 = 91,541.38/x
  3. Step 3: Cross multiply
    168,022.50x = 231,870.36 × 91,541.38
  4. Step 4: Simplify right side
    168,022.50x = 21,225,732,735.50
  5. Step 5: Solve for x
    x = 21,225,732,735.50/168,022.50
  6. Step 6: Final answer
    x = 126,326.73

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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.