Home / 131,305.89-196,942.42-36,543.18

Finding the Fourth Proportional to 131,305.89, 196,942.42 and 36,543.18

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Solution

The fourth proportional to 131,305.89, 196,942.42 and 36,543.18 is: 54,810.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,305.89 : 196,942.42 = 36,543.18 : x
  2. Step 2: Convert to fraction form
    131,305.89/196,942.42 = 36,543.18/x
  3. Step 3: Cross multiply
    131,305.89x = 196,942.42 × 36,543.18
  4. Step 4: Simplify right side
    131,305.89x = 7,196,902,303.70
  5. Step 5: Solve for x
    x = 7,196,902,303.70/131,305.89
  6. Step 6: Final answer
    x = 54,810.20

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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.