Home / 109,252.20-163,619.10-67,261.80

Finding the Fourth Proportional to 109,252.20, 163,619.10 and 67,261.80

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Solution

The fourth proportional to 109,252.20, 163,619.10 and 67,261.80 is: 100,733.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,252.20 : 163,619.10 = 67,261.80 : x
  2. Step 2: Convert to fraction form
    109,252.20/163,619.10 = 67,261.80/x
  3. Step 3: Cross multiply
    109,252.20x = 163,619.10 × 67,261.80
  4. Step 4: Simplify right side
    109,252.20x = 11,005,315,180.38
  5. Step 5: Solve for x
    x = 11,005,315,180.38/109,252.20
  6. Step 6: Final answer
    x = 100,733.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.