Home / 137,493.75-205,935.78-105,669.48

Finding the Fourth Proportional to 137,493.75, 205,935.78 and 105,669.48

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Solution

The fourth proportional to 137,493.75, 205,935.78 and 105,669.48 is: 158,269.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,493.75 : 205,935.78 = 105,669.48 : x
  2. Step 2: Convert to fraction form
    137,493.75/205,935.78 = 105,669.48/x
  3. Step 3: Cross multiply
    137,493.75x = 205,935.78 × 105,669.48
  4. Step 4: Simplify right side
    137,493.75x = 21,761,126,785.99
  5. Step 5: Solve for x
    x = 21,761,126,785.99/137,493.75
  6. Step 6: Final answer
    x = 158,269.93

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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.