Home / 143,964.75-198,631.47-92,979.63

Finding the Fourth Proportional to 143,964.75, 198,631.47 and 92,979.63

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Solution

The fourth proportional to 143,964.75, 198,631.47 and 92,979.63 is: 128,286.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,964.75 : 198,631.47 = 92,979.63 : x
  2. Step 2: Convert to fraction form
    143,964.75/198,631.47 = 92,979.63/x
  3. Step 3: Cross multiply
    143,964.75x = 198,631.47 × 92,979.63
  4. Step 4: Simplify right side
    143,964.75x = 18,468,680,586.96
  5. Step 5: Solve for x
    x = 18,468,680,586.96/143,964.75
  6. Step 6: Final answer
    x = 128,286.13

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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.