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Finding the Fourth Proportional to 106,863.44, 147,597.04 and 85,427.44

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Solution

The fourth proportional to 106,863.44, 147,597.04 and 85,427.44 is: 117,990.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,863.44 : 147,597.04 = 85,427.44 : x
  2. Step 2: Convert to fraction form
    106,863.44/147,597.04 = 85,427.44/x
  3. Step 3: Cross multiply
    106,863.44x = 147,597.04 × 85,427.44
  4. Step 4: Simplify right side
    106,863.44x = 12,608,837,278.78
  5. Step 5: Solve for x
    x = 12,608,837,278.78/106,863.44
  6. Step 6: Final answer
    x = 117,990.19

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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.