Home / 125,284.39-173,121.51-91,233.61

Finding the Fourth Proportional to 125,284.39, 173,121.51 and 91,233.61

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Solution

The fourth proportional to 125,284.39, 173,121.51 and 91,233.61 is: 126,069.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,284.39 : 173,121.51 = 91,233.61 : x
  2. Step 2: Convert to fraction form
    125,284.39/173,121.51 = 91,233.61/x
  3. Step 3: Cross multiply
    125,284.39x = 173,121.51 × 91,233.61
  4. Step 4: Simplify right side
    125,284.39x = 15,794,500,325.95
  5. Step 5: Solve for x
    x = 15,794,500,325.95/125,284.39
  6. Step 6: Final answer
    x = 126,069.18

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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.