Home / 146,426.40-219,202.20-87,231.60

Finding the Fourth Proportional to 146,426.40, 219,202.20 and 87,231.60

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Solution

The fourth proportional to 146,426.40, 219,202.20 and 87,231.60 is: 130,586.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,426.40 : 219,202.20 = 87,231.60 : x
  2. Step 2: Convert to fraction form
    146,426.40/219,202.20 = 87,231.60/x
  3. Step 3: Cross multiply
    146,426.40x = 219,202.20 × 87,231.60
  4. Step 4: Simplify right side
    146,426.40x = 19,121,358,629.52
  5. Step 5: Solve for x
    x = 19,121,358,629.52/146,426.40
  6. Step 6: Final answer
    x = 130,586.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.