Home / 143,544.45-215,098.35-68,561.34

Finding the Fourth Proportional to 143,544.45, 215,098.35 and 68,561.34

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Solution

The fourth proportional to 143,544.45, 215,098.35 and 68,561.34 is: 102,737.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,544.45 : 215,098.35 = 68,561.34 : x
  2. Step 2: Convert to fraction form
    143,544.45/215,098.35 = 68,561.34/x
  3. Step 3: Cross multiply
    143,544.45x = 215,098.35 × 68,561.34
  4. Step 4: Simplify right side
    143,544.45x = 14,747,431,107.79
  5. Step 5: Solve for x
    x = 14,747,431,107.79/143,544.45
  6. Step 6: Final answer
    x = 102,737.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.