Home / 142,612.21-196,825.44-82,171.27

Finding the Fourth Proportional to 142,612.21, 196,825.44 and 82,171.27

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Solution

The fourth proportional to 142,612.21, 196,825.44 and 82,171.27 is: 113,408.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,612.21 : 196,825.44 = 82,171.27 : x
  2. Step 2: Convert to fraction form
    142,612.21/196,825.44 = 82,171.27/x
  3. Step 3: Cross multiply
    142,612.21x = 196,825.44 × 82,171.27
  4. Step 4: Simplify right side
    142,612.21x = 16,173,396,373.11
  5. Step 5: Solve for x
    x = 16,173,396,373.11/142,612.21
  6. Step 6: Final answer
    x = 113,408.22

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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.