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Finding the Fourth Proportional to 117,207.70, 161,747.40 and 63,492.72

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Solution

The fourth proportional to 117,207.70, 161,747.40 and 63,492.72 is: 87,620.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,207.70 : 161,747.40 = 63,492.72 : x
  2. Step 2: Convert to fraction form
    117,207.70/161,747.40 = 63,492.72/x
  3. Step 3: Cross multiply
    117,207.70x = 161,747.40 × 63,492.72
  4. Step 4: Simplify right side
    117,207.70x = 10,269,782,378.93
  5. Step 5: Solve for x
    x = 10,269,782,378.93/117,207.70
  6. Step 6: Final answer
    x = 87,620.37

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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.