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Finding the Fourth Proportional to 119,388.17, 179,043.65 and 39,408.17

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Solution

The fourth proportional to 119,388.17, 179,043.65 and 39,408.17 is: 59,099.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,388.17 : 179,043.65 = 39,408.17 : x
  2. Step 2: Convert to fraction form
    119,388.17/179,043.65 = 39,408.17/x
  3. Step 3: Cross multiply
    119,388.17x = 179,043.65 × 39,408.17
  4. Step 4: Simplify right side
    119,388.17x = 7,055,782,847.19
  5. Step 5: Solve for x
    x = 7,055,782,847.19/119,388.17
  6. Step 6: Final answer
    x = 59,099.51

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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.