Home / 139,660.98-192,698.54-82,302.66

Finding the Fourth Proportional to 139,660.98, 192,698.54 and 82,302.66

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Solution

The fourth proportional to 139,660.98, 192,698.54 and 82,302.66 is: 113,557.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,660.98 : 192,698.54 = 82,302.66 : x
  2. Step 2: Convert to fraction form
    139,660.98/192,698.54 = 82,302.66/x
  3. Step 3: Cross multiply
    139,660.98x = 192,698.54 × 82,302.66
  4. Step 4: Simplify right side
    139,660.98x = 15,859,602,420.12
  5. Step 5: Solve for x
    x = 15,859,602,420.12/139,660.98
  6. Step 6: Final answer
    x = 113,557.86

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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.