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Finding the Fourth Proportional to 148,548.80, 223,020.96 and 86,264

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Solution

The fourth proportional to 148,548.80, 223,020.96 and 86,264 is: 129,510.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,548.80 : 223,020.96 = 86,264 : x
  2. Step 2: Convert to fraction form
    148,548.80/223,020.96 = 86,264/x
  3. Step 3: Cross multiply
    148,548.80x = 223,020.96 × 86,264
  4. Step 4: Simplify right side
    148,548.80x = 19,238,680,093.44
  5. Step 5: Solve for x
    x = 19,238,680,093.44/148,548.80
  6. Step 6: Final answer
    x = 129,510.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.