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Finding the Fourth Proportional to 189,149.58, 261,028.17 and 104,269.68

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Solution

The fourth proportional to 189,149.58, 261,028.17 and 104,269.68 is: 143,893.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,149.58 : 261,028.17 = 104,269.68 : x
  2. Step 2: Convert to fraction form
    189,149.58/261,028.17 = 104,269.68/x
  3. Step 3: Cross multiply
    189,149.58x = 261,028.17 × 104,269.68
  4. Step 4: Simplify right side
    189,149.58x = 27,217,323,756.89
  5. Step 5: Solve for x
    x = 27,217,323,756.89/189,149.58
  6. Step 6: Final answer
    x = 143,893.12

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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.