Home / 155,342.96-214,371.24-87,359.91

Finding the Fourth Proportional to 155,342.96, 214,371.24 and 87,359.91

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Solution

The fourth proportional to 155,342.96, 214,371.24 and 87,359.91 is: 120,555.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,342.96 : 214,371.24 = 87,359.91 : x
  2. Step 2: Convert to fraction form
    155,342.96/214,371.24 = 87,359.91/x
  3. Step 3: Cross multiply
    155,342.96x = 214,371.24 × 87,359.91
  4. Step 4: Simplify right side
    155,342.96x = 18,727,451,429.10
  5. Step 5: Solve for x
    x = 18,727,451,429.10/155,342.96
  6. Step 6: Final answer
    x = 120,555.52

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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.