Home / 168,087.84-231,960.69-91,611.15

Finding the Fourth Proportional to 168,087.84, 231,960.69 and 91,611.15

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Solution

The fourth proportional to 168,087.84, 231,960.69 and 91,611.15 is: 126,423.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,087.84 : 231,960.69 = 91,611.15 : x
  2. Step 2: Convert to fraction form
    168,087.84/231,960.69 = 91,611.15/x
  3. Step 3: Cross multiply
    168,087.84x = 231,960.69 × 91,611.15
  4. Step 4: Simplify right side
    168,087.84x = 21,250,185,565.69
  5. Step 5: Solve for x
    x = 21,250,185,565.69/168,087.84
  6. Step 6: Final answer
    x = 126,423.10

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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.