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Finding the Fourth Proportional to 117,843.60, 162,625.88 and 64,130.16

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Solution

The fourth proportional to 117,843.60, 162,625.88 and 64,130.16 is: 88,500.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,843.60 : 162,625.88 = 64,130.16 : x
  2. Step 2: Convert to fraction form
    117,843.60/162,625.88 = 64,130.16/x
  3. Step 3: Cross multiply
    117,843.60x = 162,625.88 × 64,130.16
  4. Step 4: Simplify right side
    117,843.60x = 10,429,223,704.54
  5. Step 5: Solve for x
    x = 10,429,223,704.54/117,843.60
  6. Step 6: Final answer
    x = 88,500.55

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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.