Home / 142,183.46-196,251.18-81,760.70

Finding the Fourth Proportional to 142,183.46, 196,251.18 and 81,760.70

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Solution

The fourth proportional to 142,183.46, 196,251.18 and 81,760.70 is: 112,851.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,183.46 : 196,251.18 = 81,760.70 : x
  2. Step 2: Convert to fraction form
    142,183.46/196,251.18 = 81,760.70/x
  3. Step 3: Cross multiply
    142,183.46x = 196,251.18 × 81,760.70
  4. Step 4: Simplify right side
    142,183.46x = 16,045,633,852.63
  5. Step 5: Solve for x
    x = 16,045,633,852.63/142,183.46
  6. Step 6: Final answer
    x = 112,851.62

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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.