Home / 139,212.72-192,026.16-82,584

Finding the Fourth Proportional to 139,212.72, 192,026.16 and 82,584

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Solution

The fourth proportional to 139,212.72, 192,026.16 and 82,584 is: 113,914.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,212.72 : 192,026.16 = 82,584 : x
  2. Step 2: Convert to fraction form
    139,212.72/192,026.16 = 82,584/x
  3. Step 3: Cross multiply
    139,212.72x = 192,026.16 × 82,584
  4. Step 4: Simplify right side
    139,212.72x = 15,858,288,397.44
  5. Step 5: Solve for x
    x = 15,858,288,397.44/139,212.72
  6. Step 6: Final answer
    x = 113,914.08

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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.