Home / 155,495.07-214,584.09-87,513.39

Finding the Fourth Proportional to 155,495.07, 214,584.09 and 87,513.39

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Solution

The fourth proportional to 155,495.07, 214,584.09 and 87,513.39 is: 120,768.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,495.07 : 214,584.09 = 87,513.39 : x
  2. Step 2: Convert to fraction form
    155,495.07/214,584.09 = 87,513.39/x
  3. Step 3: Cross multiply
    155,495.07x = 214,584.09 × 87,513.39
  4. Step 4: Simplify right side
    155,495.07x = 18,778,981,155.97
  5. Step 5: Solve for x
    x = 18,778,981,155.97/155,495.07
  6. Step 6: Final answer
    x = 120,768.98

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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.