Home / 109,436.18-150,987.19-86,392.95

Finding the Fourth Proportional to 109,436.18, 150,987.19 and 86,392.95

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Solution

The fourth proportional to 109,436.18, 150,987.19 and 86,392.95 is: 119,194.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,436.18 : 150,987.19 = 86,392.95 : x
  2. Step 2: Convert to fraction form
    109,436.18/150,987.19 = 86,392.95/x
  3. Step 3: Cross multiply
    109,436.18x = 150,987.19 × 86,392.95
  4. Step 4: Simplify right side
    109,436.18x = 13,044,228,540.33
  5. Step 5: Solve for x
    x = 13,044,228,540.33/109,436.18
  6. Step 6: Final answer
    x = 119,194.84

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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.