Home / 217,235.30-299,796.69-121,772.66

Finding the Fourth Proportional to 217,235.30, 299,796.69 and 121,772.66

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Solution

The fourth proportional to 217,235.30, 299,796.69 and 121,772.66 is: 168,052.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,235.30 : 299,796.69 = 121,772.66 : x
  2. Step 2: Convert to fraction form
    217,235.30/299,796.69 = 121,772.66/x
  3. Step 3: Cross multiply
    217,235.30x = 299,796.69 × 121,772.66
  4. Step 4: Simplify right side
    217,235.30x = 36,507,040,400.50
  5. Step 5: Solve for x
    x = 36,507,040,400.50/217,235.30
  6. Step 6: Final answer
    x = 168,052.98

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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.