Home / 146,445.40-219,668.10-80,090.20

Finding the Fourth Proportional to 146,445.40, 219,668.10 and 80,090.20

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Solution

The fourth proportional to 146,445.40, 219,668.10 and 80,090.20 is: 120,135.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,445.40 : 219,668.10 = 80,090.20 : x
  2. Step 2: Convert to fraction form
    146,445.40/219,668.10 = 80,090.20/x
  3. Step 3: Cross multiply
    146,445.40x = 219,668.10 × 80,090.20
  4. Step 4: Simplify right side
    146,445.40x = 17,593,262,062.62
  5. Step 5: Solve for x
    x = 17,593,262,062.62/146,445.40
  6. Step 6: Final answer
    x = 120,135.30

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1.5x scale

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.