Home / 143,598.42-215,530.62-72,571.05

Finding the Fourth Proportional to 143,598.42, 215,530.62 and 72,571.05

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Solution

The fourth proportional to 143,598.42, 215,530.62 and 72,571.05 is: 108,923.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,598.42 : 215,530.62 = 72,571.05 : x
  2. Step 2: Convert to fraction form
    143,598.42/215,530.62 = 72,571.05/x
  3. Step 3: Cross multiply
    143,598.42x = 215,530.62 × 72,571.05
  4. Step 4: Simplify right side
    143,598.42x = 15,641,283,400.55
  5. Step 5: Solve for x
    x = 15,641,283,400.55/143,598.42
  6. Step 6: Final answer
    x = 108,923.78

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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.