Home / 142,612.20-196,825.44-82,171.28

Finding the Fourth Proportional to 142,612.20, 196,825.44 and 82,171.28

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Solution

The fourth proportional to 142,612.20, 196,825.44 and 82,171.28 is: 113,408.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,612.20 : 196,825.44 = 82,171.28 : x
  2. Step 2: Convert to fraction form
    142,612.20/196,825.44 = 82,171.28/x
  3. Step 3: Cross multiply
    142,612.20x = 196,825.44 × 82,171.28
  4. Step 4: Simplify right side
    142,612.20x = 16,173,398,341.36
  5. Step 5: Solve for x
    x = 16,173,398,341.36/142,612.20
  6. Step 6: Final answer
    x = 113,408.24

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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.