Home / 155,262.20-214,284.48-87,284.78

Finding the Fourth Proportional to 155,262.20, 214,284.48 and 87,284.78

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Solution

The fourth proportional to 155,262.20, 214,284.48 and 87,284.78 is: 120,465.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,262.20 : 214,284.48 = 87,284.78 : x
  2. Step 2: Convert to fraction form
    155,262.20/214,284.48 = 87,284.78/x
  3. Step 3: Cross multiply
    155,262.20x = 214,284.48 × 87,284.78
  4. Step 4: Simplify right side
    155,262.20x = 18,703,773,694.21
  5. Step 5: Solve for x
    x = 18,703,773,694.21/155,262.20
  6. Step 6: Final answer
    x = 120,465.73

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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.