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Finding the Fourth Proportional to 156,036.60, 233,786.10 and 72,759.80

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Solution

The fourth proportional to 156,036.60, 233,786.10 and 72,759.80 is: 109,014.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,036.60 : 233,786.10 = 72,759.80 : x
  2. Step 2: Convert to fraction form
    156,036.60/233,786.10 = 72,759.80/x
  3. Step 3: Cross multiply
    156,036.60x = 233,786.10 × 72,759.80
  4. Step 4: Simplify right side
    156,036.60x = 17,010,229,878.78
  5. Step 5: Solve for x
    x = 17,010,229,878.78/156,036.60
  6. Step 6: Final answer
    x = 109,014.36

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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.