Home / 146,005.20-219,468.60-137,710.80

Finding the Fourth Proportional to 146,005.20, 219,468.60 and 137,710.80

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Solution

The fourth proportional to 146,005.20, 219,468.60 and 137,710.80 is: 207,000.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,005.20 : 219,468.60 = 137,710.80 : x
  2. Step 2: Convert to fraction form
    146,005.20/219,468.60 = 137,710.80/x
  3. Step 3: Cross multiply
    146,005.20x = 219,468.60 × 137,710.80
  4. Step 4: Simplify right side
    146,005.20x = 30,223,196,480.88
  5. Step 5: Solve for x
    x = 30,223,196,480.88/146,005.20
  6. Step 6: Final answer
    x = 207,000.82

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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.