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Finding the Fourth Proportional to 131,610.56, 181,583.52 and 75,018.56

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Solution

The fourth proportional to 131,610.56, 181,583.52 and 75,018.56 is: 103,503.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,610.56 : 181,583.52 = 75,018.56 : x
  2. Step 2: Convert to fraction form
    131,610.56/181,583.52 = 75,018.56/x
  3. Step 3: Cross multiply
    131,610.56x = 181,583.52 × 75,018.56
  4. Step 4: Simplify right side
    131,610.56x = 13,622,134,190.13
  5. Step 5: Solve for x
    x = 13,622,134,190.13/131,610.56
  6. Step 6: Final answer
    x = 103,503.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.