Home / 156,339.26-215,668.94-98,881.81

Finding the Fourth Proportional to 156,339.26, 215,668.94 and 98,881.81

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Solution

The fourth proportional to 156,339.26, 215,668.94 and 98,881.81 is: 136,406.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,339.26 : 215,668.94 = 98,881.81 : x
  2. Step 2: Convert to fraction form
    156,339.26/215,668.94 = 98,881.81/x
  3. Step 3: Cross multiply
    156,339.26x = 215,668.94 × 98,881.81
  4. Step 4: Simplify right side
    156,339.26x = 21,325,735,147.98
  5. Step 5: Solve for x
    x = 21,325,735,147.98/156,339.26
  6. Step 6: Final answer
    x = 136,406.78

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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.