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Finding the Fourth Proportional to 88,474.60, 132,070.35 and 81,889.22

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Solution

The fourth proportional to 88,474.60, 132,070.35 and 81,889.22 is: 122,240.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,474.60 : 132,070.35 = 81,889.22 : x
  2. Step 2: Convert to fraction form
    88,474.60/132,070.35 = 81,889.22/x
  3. Step 3: Cross multiply
    88,474.60x = 132,070.35 × 81,889.22
  4. Step 4: Simplify right side
    88,474.60x = 10,815,137,946.63
  5. Step 5: Solve for x
    x = 10,815,137,946.63/88,474.60
  6. Step 6: Final answer
    x = 122,240.03

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.