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Finding the Fourth Proportional to 117,355.37, 161,950.50 and 63,640.37

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Solution

The fourth proportional to 117,355.37, 161,950.50 and 63,640.37 is: 87,823.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,355.37 : 161,950.50 = 63,640.37 : x
  2. Step 2: Convert to fraction form
    117,355.37/161,950.50 = 63,640.37/x
  3. Step 3: Cross multiply
    117,355.37x = 161,950.50 × 63,640.37
  4. Step 4: Simplify right side
    117,355.37x = 10,306,589,423.48
  5. Step 5: Solve for x
    x = 10,306,589,423.48/117,355.37
  6. Step 6: Final answer
    x = 87,823.76

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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.