Home / 142,612.71-196,826.13-82,171.77

Finding the Fourth Proportional to 142,612.71, 196,826.13 and 82,171.77

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Solution

The fourth proportional to 142,612.71, 196,826.13 and 82,171.77 is: 113,408.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,612.71 : 196,826.13 = 82,171.77 : x
  2. Step 2: Convert to fraction form
    142,612.71/196,826.13 = 82,171.77/x
  3. Step 3: Cross multiply
    142,612.71x = 196,826.13 × 82,171.77
  4. Step 4: Simplify right side
    142,612.71x = 16,173,551,484.35
  5. Step 5: Solve for x
    x = 16,173,551,484.35/142,612.71
  6. Step 6: Final answer
    x = 113,408.91

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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.