Home / 143,079.39-197,474.01-82,639.17

Finding the Fourth Proportional to 143,079.39, 197,474.01 and 82,639.17

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Solution

The fourth proportional to 143,079.39, 197,474.01 and 82,639.17 is: 114,056.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,079.39 : 197,474.01 = 82,639.17 : x
  2. Step 2: Convert to fraction form
    143,079.39/197,474.01 = 82,639.17/x
  3. Step 3: Cross multiply
    143,079.39x = 197,474.01 × 82,639.17
  4. Step 4: Simplify right side
    143,079.39x = 16,319,088,282.97
  5. Step 5: Solve for x
    x = 16,319,088,282.97/143,079.39
  6. Step 6: Final answer
    x = 114,056.18

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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.