Home / 131,738.56-197,610.78-47,505.52

Finding the Fourth Proportional to 131,738.56, 197,610.78 and 47,505.52

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Solution

The fourth proportional to 131,738.56, 197,610.78 and 47,505.52 is: 71,259.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,738.56 : 197,610.78 = 47,505.52 : x
  2. Step 2: Convert to fraction form
    131,738.56/197,610.78 = 47,505.52/x
  3. Step 3: Cross multiply
    131,738.56x = 197,610.78 × 47,505.52
  4. Step 4: Simplify right side
    131,738.56x = 9,387,602,861.51
  5. Step 5: Solve for x
    x = 9,387,602,861.51/131,738.56
  6. Step 6: Final answer
    x = 71,259.34

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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.