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Finding the Fourth Proportional to 155,838.74, 233,745.57 and 69,311.39

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Solution

The fourth proportional to 155,838.74, 233,745.57 and 69,311.39 is: 103,961.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,838.74 : 233,745.57 = 69,311.39 : x
  2. Step 2: Convert to fraction form
    155,838.74/233,745.57 = 69,311.39/x
  3. Step 3: Cross multiply
    155,838.74x = 233,745.57 × 69,311.39
  4. Step 4: Simplify right side
    155,838.74x = 16,201,229,194.31
  5. Step 5: Solve for x
    x = 16,201,229,194.31/155,838.74
  6. Step 6: Final answer
    x = 103,961.50

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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.