Home / 131,148.20-196,430.70-101,469.80

Finding the Fourth Proportional to 131,148.20, 196,430.70 and 101,469.80

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Solution

The fourth proportional to 131,148.20, 196,430.70 and 101,469.80 is: 151,979.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,148.20 : 196,430.70 = 101,469.80 : x
  2. Step 2: Convert to fraction form
    131,148.20/196,430.70 = 101,469.80/x
  3. Step 3: Cross multiply
    131,148.20x = 196,430.70 × 101,469.80
  4. Step 4: Simplify right side
    131,148.20x = 19,931,783,842.86
  5. Step 5: Solve for x
    x = 19,931,783,842.86/131,148.20
  6. Step 6: Final answer
    x = 151,979.09

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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.