Home / 142,565.07-196,739.79-82,949.07

Finding the Fourth Proportional to 142,565.07, 196,739.79 and 82,949.07

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Solution

The fourth proportional to 142,565.07, 196,739.79 and 82,949.07 is: 114,469.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,565.07 : 196,739.79 = 82,949.07 : x
  2. Step 2: Convert to fraction form
    142,565.07/196,739.79 = 82,949.07/x
  3. Step 3: Cross multiply
    142,565.07x = 196,739.79 × 82,949.07
  4. Step 4: Simplify right side
    142,565.07x = 16,319,382,612.50
  5. Step 5: Solve for x
    x = 16,319,382,612.50/142,565.07
  6. Step 6: Final answer
    x = 114,469.71

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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.