Home / 142,451.19-196,615.26-82,056.78

Finding the Fourth Proportional to 142,451.19, 196,615.26 and 82,056.78

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Solution

The fourth proportional to 142,451.19, 196,615.26 and 82,056.78 is: 113,257.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,451.19 : 196,615.26 = 82,056.78 : x
  2. Step 2: Convert to fraction form
    142,451.19/196,615.26 = 82,056.78/x
  3. Step 3: Cross multiply
    142,451.19x = 196,615.26 × 82,056.78
  4. Step 4: Simplify right side
    142,451.19x = 16,133,615,134.46
  5. Step 5: Solve for x
    x = 16,133,615,134.46/142,451.19
  6. Step 6: Final answer
    x = 113,257.15

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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.