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Finding the Fourth Proportional to 155,846.52, 234,191.84 and 84,821.67

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Solution

The fourth proportional to 155,846.52, 234,191.84 and 84,821.67 is: 127,462.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,846.52 : 234,191.84 = 84,821.67 : x
  2. Step 2: Convert to fraction form
    155,846.52/234,191.84 = 84,821.67/x
  3. Step 3: Cross multiply
    155,846.52x = 234,191.84 × 84,821.67
  4. Step 4: Simplify right side
    155,846.52x = 19,864,542,545.06
  5. Step 5: Solve for x
    x = 19,864,542,545.06/155,846.52
  6. Step 6: Final answer
    x = 127,462.21

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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.