Home / 146,810.20-220,215.30-136,312.60

Finding the Fourth Proportional to 146,810.20, 220,215.30 and 136,312.60

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Solution

The fourth proportional to 146,810.20, 220,215.30 and 136,312.60 is: 204,468.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,810.20 : 220,215.30 = 136,312.60 : x
  2. Step 2: Convert to fraction form
    146,810.20/220,215.30 = 136,312.60/x
  3. Step 3: Cross multiply
    146,810.20x = 220,215.30 × 136,312.60
  4. Step 4: Simplify right side
    146,810.20x = 30,018,120,102.78
  5. Step 5: Solve for x
    x = 30,018,120,102.78/146,810.20
  6. Step 6: Final answer
    x = 204,468.90

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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.