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Finding the Fourth Proportional to 148,260, 204,599.52 and 81,192

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Solution

The fourth proportional to 148,260, 204,599.52 and 81,192 is: 112,045.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,260 : 204,599.52 = 81,192 : x
  2. Step 2: Convert to fraction form
    148,260/204,599.52 = 81,192/x
  3. Step 3: Cross multiply
    148,260x = 204,599.52 × 81,192
  4. Step 4: Simplify right side
    148,260x = 16,611,844,227.84
  5. Step 5: Solve for x
    x = 16,611,844,227.84/148,260
  6. Step 6: Final answer
    x = 112,045.35

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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.