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Finding the Fourth Proportional to 117,214.92, 161,756.06 and 63,499.77

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Solution

The fourth proportional to 117,214.92, 161,756.06 and 63,499.77 is: 87,629.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,214.92 : 161,756.06 = 63,499.77 : x
  2. Step 2: Convert to fraction form
    117,214.92/161,756.06 = 63,499.77/x
  3. Step 3: Cross multiply
    117,214.92x = 161,756.06 × 63,499.77
  4. Step 4: Simplify right side
    117,214.92x = 10,271,472,288.61
  5. Step 5: Solve for x
    x = 10,271,472,288.61/117,214.92
  6. Step 6: Final answer
    x = 87,629.39

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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.