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Finding the Fourth Proportional to 101,608.45, 152,411.99 and 79,440.48

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Solution

The fourth proportional to 101,608.45, 152,411.99 and 79,440.48 is: 119,160.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,608.45 : 152,411.99 = 79,440.48 : x
  2. Step 2: Convert to fraction form
    101,608.45/152,411.99 = 79,440.48/x
  3. Step 3: Cross multiply
    101,608.45x = 152,411.99 × 79,440.48
  4. Step 4: Simplify right side
    101,608.45x = 12,107,681,246.15
  5. Step 5: Solve for x
    x = 12,107,681,246.15/101,608.45
  6. Step 6: Final answer
    x = 119,160.18

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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.