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Finding the Fourth Proportional to 117,662.60, 162,377.96 and 72,367.19

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Solution

The fourth proportional to 117,662.60, 162,377.96 and 72,367.19 is: 99,868.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,662.60 : 162,377.96 = 72,367.19 : x
  2. Step 2: Convert to fraction form
    117,662.60/162,377.96 = 72,367.19/x
  3. Step 3: Cross multiply
    117,662.60x = 162,377.96 × 72,367.19
  4. Step 4: Simplify right side
    117,662.60x = 11,750,835,509.41
  5. Step 5: Solve for x
    x = 11,750,835,509.41/117,662.60
  6. Step 6: Final answer
    x = 99,868.91

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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.