Home / 143,228.25-197,655.12-79,571.97

Finding the Fourth Proportional to 143,228.25, 197,655.12 and 79,571.97

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Solution

The fourth proportional to 143,228.25, 197,655.12 and 79,571.97 is: 109,809.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,228.25 : 197,655.12 = 79,571.97 : x
  2. Step 2: Convert to fraction form
    143,228.25/197,655.12 = 79,571.97/x
  3. Step 3: Cross multiply
    143,228.25x = 197,655.12 × 79,571.97
  4. Step 4: Simplify right side
    143,228.25x = 15,727,807,278.99
  5. Step 5: Solve for x
    x = 15,727,807,278.99/143,228.25
  6. Step 6: Final answer
    x = 109,809.39

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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.