Home / 142,961.15-197,282.58-82,529.75

Finding the Fourth Proportional to 142,961.15, 197,282.58 and 82,529.75

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Solution

The fourth proportional to 142,961.15, 197,282.58 and 82,529.75 is: 113,888.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,961.15 : 197,282.58 = 82,529.75 : x
  2. Step 2: Convert to fraction form
    142,961.15/197,282.58 = 82,529.75/x
  3. Step 3: Cross multiply
    142,961.15x = 197,282.58 × 82,529.75
  4. Step 4: Simplify right side
    142,961.15x = 16,281,682,006.76
  5. Step 5: Solve for x
    x = 16,281,682,006.76/142,961.15
  6. Step 6: Final answer
    x = 113,888.86

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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.