Home / 151,561.26-209,149.71-83,581.09

Finding the Fourth Proportional to 151,561.26, 209,149.71 and 83,581.09

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Solution

The fourth proportional to 151,561.26, 209,149.71 and 83,581.09 is: 115,339.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,561.26 : 209,149.71 = 83,581.09 : x
  2. Step 2: Convert to fraction form
    151,561.26/209,149.71 = 83,581.09/x
  3. Step 3: Cross multiply
    151,561.26x = 209,149.71 × 83,581.09
  4. Step 4: Simplify right side
    151,561.26x = 17,480,960,734.98
  5. Step 5: Solve for x
    x = 17,480,960,734.98/151,561.26
  6. Step 6: Final answer
    x = 115,339.24

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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.