Home / 156,987.48-235,489.38-51,814.68

Finding the Fourth Proportional to 156,987.48, 235,489.38 and 51,814.68

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Solution

The fourth proportional to 156,987.48, 235,489.38 and 51,814.68 is: 77,724.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,987.48 : 235,489.38 = 51,814.68 : x
  2. Step 2: Convert to fraction form
    156,987.48/235,489.38 = 51,814.68/x
  3. Step 3: Cross multiply
    156,987.48x = 235,489.38 × 51,814.68
  4. Step 4: Simplify right side
    156,987.48x = 12,201,806,868.10
  5. Step 5: Solve for x
    x = 12,201,806,868.10/156,987.48
  6. Step 6: Final answer
    x = 77,724.71

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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.