Home / 207,150.75-285,868.34-122,267.81

Finding the Fourth Proportional to 207,150.75, 285,868.34 and 122,267.81

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Solution

The fourth proportional to 207,150.75, 285,868.34 and 122,267.81 is: 168,729.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,150.75 : 285,868.34 = 122,267.81 : x
  2. Step 2: Convert to fraction form
    207,150.75/285,868.34 = 122,267.81/x
  3. Step 3: Cross multiply
    207,150.75x = 285,868.34 × 122,267.81
  4. Step 4: Simplify right side
    207,150.75x = 34,952,496,441.97
  5. Step 5: Solve for x
    x = 34,952,496,441.97/207,150.75
  6. Step 6: Final answer
    x = 168,729.76

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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.