Home / 117,138.54-161,650.94-63,423.60

Finding the Fourth Proportional to 117,138.54, 161,650.94 and 63,423.60

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Solution

The fourth proportional to 117,138.54, 161,650.94 and 63,423.60 is: 87,524.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,138.54 : 161,650.94 = 63,423.60 : x
  2. Step 2: Convert to fraction form
    117,138.54/161,650.94 = 63,423.60/x
  3. Step 3: Cross multiply
    117,138.54x = 161,650.94 × 63,423.60
  4. Step 4: Simplify right side
    117,138.54x = 10,252,484,558.18
  5. Step 5: Solve for x
    x = 10,252,484,558.18/117,138.54
  6. Step 6: Final answer
    x = 87,524.44

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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.