Home / 155,251.29-214,269.47-87,273.86

Finding the Fourth Proportional to 155,251.29, 214,269.47 and 87,273.86

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Solution

The fourth proportional to 155,251.29, 214,269.47 and 87,273.86 is: 120,450.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,251.29 : 214,269.47 = 87,273.86 : x
  2. Step 2: Convert to fraction form
    155,251.29/214,269.47 = 87,273.86/x
  3. Step 3: Cross multiply
    155,251.29x = 214,269.47 × 87,273.86
  4. Step 4: Simplify right side
    155,251.29x = 18,700,123,290.68
  5. Step 5: Solve for x
    x = 18,700,123,290.68/155,251.29
  6. Step 6: Final answer
    x = 120,450.68

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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.