Home / 142,585.75-196,812.14-82,196.76

Finding the Fourth Proportional to 142,585.75, 196,812.14 and 82,196.76

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Solution

The fourth proportional to 142,585.75, 196,812.14 and 82,196.76 is: 113,456.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,585.75 : 196,812.14 = 82,196.76 : x
  2. Step 2: Convert to fraction form
    142,585.75/196,812.14 = 82,196.76/x
  3. Step 3: Cross multiply
    142,585.75x = 196,812.14 × 82,196.76
  4. Step 4: Simplify right side
    142,585.75x = 16,177,319,825.68
  5. Step 5: Solve for x
    x = 16,177,319,825.68/142,585.75
  6. Step 6: Final answer
    x = 113,456.78

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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.