Home / 131,243.36-196,893.76-42,505.84

Finding the Fourth Proportional to 131,243.36, 196,893.76 and 42,505.84

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Solution

The fourth proportional to 131,243.36, 196,893.76 and 42,505.84 is: 63,768.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,243.36 : 196,893.76 = 42,505.84 : x
  2. Step 2: Convert to fraction form
    131,243.36/196,893.76 = 42,505.84/x
  3. Step 3: Cross multiply
    131,243.36x = 196,893.76 × 42,505.84
  4. Step 4: Simplify right side
    131,243.36x = 8,369,133,462.56
  5. Step 5: Solve for x
    x = 8,369,133,462.56/131,243.36
  6. Step 6: Final answer
    x = 63,768.05

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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.