Home / 131,560.56-197,340.84-105,429.96

Finding the Fourth Proportional to 131,560.56, 197,340.84 and 105,429.96

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Solution

The fourth proportional to 131,560.56, 197,340.84 and 105,429.96 is: 158,144.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,560.56 : 197,340.84 = 105,429.96 : x
  2. Step 2: Convert to fraction form
    131,560.56/197,340.84 = 105,429.96/x
  3. Step 3: Cross multiply
    131,560.56x = 197,340.84 × 105,429.96
  4. Step 4: Simplify right side
    131,560.56x = 20,805,636,867.57
  5. Step 5: Solve for x
    x = 20,805,636,867.57/131,560.56
  6. Step 6: Final answer
    x = 158,144.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.