Home / 130,942.25-196,424.69-36,172.40

Finding the Fourth Proportional to 130,942.25, 196,424.69 and 36,172.40

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Solution

The fourth proportional to 130,942.25, 196,424.69 and 36,172.40 is: 54,261.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,942.25 : 196,424.69 = 36,172.40 : x
  2. Step 2: Convert to fraction form
    130,942.25/196,424.69 = 36,172.40/x
  3. Step 3: Cross multiply
    130,942.25x = 196,424.69 × 36,172.40
  4. Step 4: Simplify right side
    130,942.25x = 7,105,152,456.56
  5. Step 5: Solve for x
    x = 7,105,152,456.56/130,942.25
  6. Step 6: Final answer
    x = 54,261.73

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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.