Home / 156,987.37-235,489.20-51,814.54

Finding the Fourth Proportional to 156,987.37, 235,489.20 and 51,814.54

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Solution

The fourth proportional to 156,987.37, 235,489.20 and 51,814.54 is: 77,724.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,987.37 : 235,489.20 = 51,814.54 : x
  2. Step 2: Convert to fraction form
    156,987.37/235,489.20 = 51,814.54/x
  3. Step 3: Cross multiply
    156,987.37x = 235,489.20 × 51,814.54
  4. Step 4: Simplify right side
    156,987.37x = 12,201,764,572.97
  5. Step 5: Solve for x
    x = 12,201,764,572.97/156,987.37
  6. Step 6: Final answer
    x = 77,724.50

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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.