Home / 215,935.17-297,989.76-120,441.79

Finding the Fourth Proportional to 215,935.17, 297,989.76 and 120,441.79

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Solution

The fourth proportional to 215,935.17, 297,989.76 and 120,441.79 is: 166,209.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,935.17 : 297,989.76 = 120,441.79 : x
  2. Step 2: Convert to fraction form
    215,935.17/297,989.76 = 120,441.79/x
  3. Step 3: Cross multiply
    215,935.17x = 297,989.76 × 120,441.79
  4. Step 4: Simplify right side
    215,935.17x = 35,890,420,096.07
  5. Step 5: Solve for x
    x = 35,890,420,096.07/215,935.17
  6. Step 6: Final answer
    x = 166,209.24

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1.5x scale

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.