Home / 155,204.58-214,187.96-87,222.90

Finding the Fourth Proportional to 155,204.58, 214,187.96 and 87,222.90

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Solution

The fourth proportional to 155,204.58, 214,187.96 and 87,222.90 is: 120,370.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,204.58 : 214,187.96 = 87,222.90 : x
  2. Step 2: Convert to fraction form
    155,204.58/214,187.96 = 87,222.90/x
  3. Step 3: Cross multiply
    155,204.58x = 214,187.96 × 87,222.90
  4. Step 4: Simplify right side
    155,204.58x = 18,682,095,016.28
  5. Step 5: Solve for x
    x = 18,682,095,016.28/155,204.58
  6. Step 6: Final answer
    x = 120,370.77

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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.