Home / 143,087.89-197,470.62-82,661.08

Finding the Fourth Proportional to 143,087.89, 197,470.62 and 82,661.08

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Solution

The fourth proportional to 143,087.89, 197,470.62 and 82,661.08 is: 114,077.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,087.89 : 197,470.62 = 82,661.08 : x
  2. Step 2: Convert to fraction form
    143,087.89/197,470.62 = 82,661.08/x
  3. Step 3: Cross multiply
    143,087.89x = 197,470.62 × 82,661.08
  4. Step 4: Simplify right side
    143,087.89x = 16,323,134,223.79
  5. Step 5: Solve for x
    x = 16,323,134,223.79/143,087.89
  6. Step 6: Final answer
    x = 114,077.68

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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.