Home / 155,495.06-214,584.08-87,513.38

Finding the Fourth Proportional to 155,495.06, 214,584.08 and 87,513.38

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Solution

The fourth proportional to 155,495.06, 214,584.08 and 87,513.38 is: 120,768.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,495.06 : 214,584.08 = 87,513.38 : x
  2. Step 2: Convert to fraction form
    155,495.06/214,584.08 = 87,513.38/x
  3. Step 3: Cross multiply
    155,495.06x = 214,584.08 × 87,513.38
  4. Step 4: Simplify right side
    155,495.06x = 18,778,978,134.99
  5. Step 5: Solve for x
    x = 18,778,978,134.99/155,495.06
  6. Step 6: Final answer
    x = 120,768.97

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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.