Home / 131,190.24-196,743.36-42,424.80

Finding the Fourth Proportional to 131,190.24, 196,743.36 and 42,424.80

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Solution

The fourth proportional to 131,190.24, 196,743.36 and 42,424.80 is: 63,623.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,190.24 : 196,743.36 = 42,424.80 : x
  2. Step 2: Convert to fraction form
    131,190.24/196,743.36 = 42,424.80/x
  3. Step 3: Cross multiply
    131,190.24x = 196,743.36 × 42,424.80
  4. Step 4: Simplify right side
    131,190.24x = 8,346,797,699.33
  5. Step 5: Solve for x
    x = 8,346,797,699.33/131,190.24
  6. Step 6: Final answer
    x = 63,623.62

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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.