Home / 143,216.80-197,476.11-91,464.18

Finding the Fourth Proportional to 143,216.80, 197,476.11 and 91,464.18

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Solution

The fourth proportional to 143,216.80, 197,476.11 and 91,464.18 is: 126,116.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,216.80 : 197,476.11 = 91,464.18 : x
  2. Step 2: Convert to fraction form
    143,216.80/197,476.11 = 91,464.18/x
  3. Step 3: Cross multiply
    143,216.80x = 197,476.11 × 91,464.18
  4. Step 4: Simplify right side
    143,216.80x = 18,061,990,470.74
  5. Step 5: Solve for x
    x = 18,061,990,470.74/143,216.80
  6. Step 6: Final answer
    x = 126,116.42

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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.