Home / 215,719.81-297,694.82-120,232.66

Finding the Fourth Proportional to 215,719.81, 297,694.82 and 120,232.66

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Solution

The fourth proportional to 215,719.81, 297,694.82 and 120,232.66 is: 165,921.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,719.81 : 297,694.82 = 120,232.66 : x
  2. Step 2: Convert to fraction form
    215,719.81/297,694.82 = 120,232.66/x
  3. Step 3: Cross multiply
    215,719.81x = 297,694.82 × 120,232.66
  4. Step 4: Simplify right side
    215,719.81x = 35,792,638,287.77
  5. Step 5: Solve for x
    x = 35,792,638,287.77/215,719.81
  6. Step 6: Final answer
    x = 165,921.89

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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.