Home / 131,215.85-196,855.01-42,469.35

Finding the Fourth Proportional to 131,215.85, 196,855.01 and 42,469.35

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Solution

The fourth proportional to 131,215.85, 196,855.01 and 42,469.35 is: 63,714.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,215.85 : 196,855.01 = 42,469.35 : x
  2. Step 2: Convert to fraction form
    131,215.85/196,855.01 = 42,469.35/x
  3. Step 3: Cross multiply
    131,215.85x = 196,855.01 × 42,469.35
  4. Step 4: Simplify right side
    131,215.85x = 8,360,303,527.65
  5. Step 5: Solve for x
    x = 8,360,303,527.65/131,215.85
  6. Step 6: Final answer
    x = 63,714.13

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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.