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Finding the Fourth Proportional to 139,475.58, 209,214.84 and 55,256.24

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Solution

The fourth proportional to 139,475.58, 209,214.84 and 55,256.24 is: 82,884.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,475.58 : 209,214.84 = 55,256.24 : x
  2. Step 2: Convert to fraction form
    139,475.58/209,214.84 = 55,256.24/x
  3. Step 3: Cross multiply
    139,475.58x = 209,214.84 × 55,256.24
  4. Step 4: Simplify right side
    139,475.58x = 11,560,425,410.60
  5. Step 5: Solve for x
    x = 11,560,425,410.60/139,475.58
  6. Step 6: Final answer
    x = 82,884.94

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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.