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Finding the Fourth Proportional to 180,045.78, 270,101.50 and 61,729.08

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Solution

The fourth proportional to 180,045.78, 270,101.50 and 61,729.08 is: 92,604.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,045.78 : 270,101.50 = 61,729.08 : x
  2. Step 2: Convert to fraction form
    180,045.78/270,101.50 = 61,729.08/x
  3. Step 3: Cross multiply
    180,045.78x = 270,101.50 × 61,729.08
  4. Step 4: Simplify right side
    180,045.78x = 16,673,117,101.62
  5. Step 5: Solve for x
    x = 16,673,117,101.62/180,045.78
  6. Step 6: Final answer
    x = 92,604.88

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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.