Home / 122,975.62-169,349.03-106,835.56

Finding the Fourth Proportional to 122,975.62, 169,349.03 and 106,835.56

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Solution

The fourth proportional to 122,975.62, 169,349.03 and 106,835.56 is: 147,122.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,975.62 : 169,349.03 = 106,835.56 : x
  2. Step 2: Convert to fraction form
    122,975.62/169,349.03 = 106,835.56/x
  3. Step 3: Cross multiply
    122,975.62x = 169,349.03 × 106,835.56
  4. Step 4: Simplify right side
    122,975.62x = 18,092,497,898.59
  5. Step 5: Solve for x
    x = 18,092,497,898.59/122,975.62
  6. Step 6: Final answer
    x = 147,122.64

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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.