Home / 156,736.75-216,296.76-89,668.75

Finding the Fourth Proportional to 156,736.75, 216,296.76 and 89,668.75

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Solution

The fourth proportional to 156,736.75, 216,296.76 and 89,668.75 is: 123,742.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,736.75 : 216,296.76 = 89,668.75 : x
  2. Step 2: Convert to fraction form
    156,736.75/216,296.76 = 89,668.75/x
  3. Step 3: Cross multiply
    156,736.75x = 216,296.76 × 89,668.75
  4. Step 4: Simplify right side
    156,736.75x = 19,395,060,098.25
  5. Step 5: Solve for x
    x = 19,395,060,098.25/156,736.75
  6. Step 6: Final answer
    x = 123,742.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.