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Finding the Fourth Proportional to 131,751.52, 197,627.74 and 31,911.56

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Solution

The fourth proportional to 131,751.52, 197,627.74 and 31,911.56 is: 47,867.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,751.52 : 197,627.74 = 31,911.56 : x
  2. Step 2: Convert to fraction form
    131,751.52/197,627.74 = 31,911.56/x
  3. Step 3: Cross multiply
    131,751.52x = 197,627.74 × 31,911.56
  4. Step 4: Simplify right side
    131,751.52x = 6,306,609,482.67
  5. Step 5: Solve for x
    x = 6,306,609,482.67/131,751.52
  6. Step 6: Final answer
    x = 47,867.45

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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.