Home / 156,987.56-235,489.48-51,814.73

Finding the Fourth Proportional to 156,987.56, 235,489.48 and 51,814.73

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Solution

The fourth proportional to 156,987.56, 235,489.48 and 51,814.73 is: 77,724.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,987.56 : 235,489.48 = 51,814.73 : x
  2. Step 2: Convert to fraction form
    156,987.56/235,489.48 = 51,814.73/x
  3. Step 3: Cross multiply
    156,987.56x = 235,489.48 × 51,814.73
  4. Step 4: Simplify right side
    156,987.56x = 12,201,823,824.04
  5. Step 5: Solve for x
    x = 12,201,823,824.04/156,987.56
  6. Step 6: Final answer
    x = 77,724.78

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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.