Home / 131,742.70-197,546.82-42,939.16

Finding the Fourth Proportional to 131,742.70, 197,546.82 and 42,939.16

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Solution

The fourth proportional to 131,742.70, 197,546.82 and 42,939.16 is: 64,386.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,742.70 : 197,546.82 = 42,939.16 : x
  2. Step 2: Convert to fraction form
    131,742.70/197,546.82 = 42,939.16/x
  3. Step 3: Cross multiply
    131,742.70x = 197,546.82 × 42,939.16
  4. Step 4: Simplify right side
    131,742.70x = 8,482,494,511.47
  5. Step 5: Solve for x
    x = 8,482,494,511.47/131,742.70
  6. Step 6: Final answer
    x = 64,386.83

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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.