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Finding the Fourth Proportional to 155,896.92, 233,880 and 72,745.56

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Solution

The fourth proportional to 155,896.92, 233,880 and 72,745.56 is: 109,134.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,896.92 : 233,880 = 72,745.56 : x
  2. Step 2: Convert to fraction form
    155,896.92/233,880 = 72,745.56/x
  3. Step 3: Cross multiply
    155,896.92x = 233,880 × 72,745.56
  4. Step 4: Simplify right side
    155,896.92x = 17,013,731,572.80
  5. Step 5: Solve for x
    x = 17,013,731,572.80/155,896.92
  6. Step 6: Final answer
    x = 109,134.49

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1.5x scale

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.