Home / 215,579.79-297,509.30-120,086.53

Finding the Fourth Proportional to 215,579.79, 297,509.30 and 120,086.53

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Solution

The fourth proportional to 215,579.79, 297,509.30 and 120,086.53 is: 165,724.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,579.79 : 297,509.30 = 120,086.53 : x
  2. Step 2: Convert to fraction form
    215,579.79/297,509.30 = 120,086.53/x
  3. Step 3: Cross multiply
    215,579.79x = 297,509.30 × 120,086.53
  4. Step 4: Simplify right side
    215,579.79x = 35,726,859,261.33
  5. Step 5: Solve for x
    x = 35,726,859,261.33/215,579.79
  6. Step 6: Final answer
    x = 165,724.53

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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.