Home / 155,453.04-214,520.31-87,473.88

Finding the Fourth Proportional to 155,453.04, 214,520.31 and 87,473.88

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Solution

The fourth proportional to 155,453.04, 214,520.31 and 87,473.88 is: 120,711.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,453.04 : 214,520.31 = 87,473.88 : x
  2. Step 2: Convert to fraction form
    155,453.04/214,520.31 = 87,473.88/x
  3. Step 3: Cross multiply
    155,453.04x = 214,520.31 × 87,473.88
  4. Step 4: Simplify right side
    155,453.04x = 18,764,923,854.50
  5. Step 5: Solve for x
    x = 18,764,923,854.50/155,453.04
  6. Step 6: Final answer
    x = 120,711.21

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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.