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Finding the Fourth Proportional to 180,857.95, 271,069.31 and 66,914.91

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Solution

The fourth proportional to 180,857.95, 271,069.31 and 66,914.91 is: 100,291.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,857.95 : 271,069.31 = 66,914.91 : x
  2. Step 2: Convert to fraction form
    180,857.95/271,069.31 = 66,914.91/x
  3. Step 3: Cross multiply
    180,857.95x = 271,069.31 × 66,914.91
  4. Step 4: Simplify right side
    180,857.95x = 18,138,578,649.70
  5. Step 5: Solve for x
    x = 18,138,578,649.70/180,857.95
  6. Step 6: Final answer
    x = 100,291.85

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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.