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Finding the Fourth Proportional to 117,484.76, 162,137 and 66,497.56

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Solution

The fourth proportional to 117,484.76, 162,137 and 66,497.56 is: 91,771.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,484.76 : 162,137 = 66,497.56 : x
  2. Step 2: Convert to fraction form
    117,484.76/162,137 = 66,497.56/x
  3. Step 3: Cross multiply
    117,484.76x = 162,137 × 66,497.56
  4. Step 4: Simplify right side
    117,484.76x = 10,781,714,885.72
  5. Step 5: Solve for x
    x = 10,781,714,885.72/117,484.76
  6. Step 6: Final answer
    x = 91,771.18

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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.