Home / 131,590.55-197,384-31,749.91

Finding the Fourth Proportional to 131,590.55, 197,384 and 31,749.91

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Solution

The fourth proportional to 131,590.55, 197,384 and 31,749.91 is: 47,624.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,590.55 : 197,384 = 31,749.91 : x
  2. Step 2: Convert to fraction form
    131,590.55/197,384 = 31,749.91/x
  3. Step 3: Cross multiply
    131,590.55x = 197,384 × 31,749.91
  4. Step 4: Simplify right side
    131,590.55x = 6,266,924,235.44
  5. Step 5: Solve for x
    x = 6,266,924,235.44/131,590.55
  6. Step 6: Final answer
    x = 47,624.42

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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.