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Finding the Fourth Proportional to 155,611.60, 233,148.60 and 72,334.80

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Solution

The fourth proportional to 155,611.60, 233,148.60 and 72,334.80 is: 108,377.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,611.60 : 233,148.60 = 72,334.80 : x
  2. Step 2: Convert to fraction form
    155,611.60/233,148.60 = 72,334.80/x
  3. Step 3: Cross multiply
    155,611.60x = 233,148.60 × 72,334.80
  4. Step 4: Simplify right side
    155,611.60x = 16,864,757,351.28
  5. Step 5: Solve for x
    x = 16,864,757,351.28/155,611.60
  6. Step 6: Final answer
    x = 108,377.25

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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.