Home / 151,859.10-227,788.65-81,000.30

Finding the Fourth Proportional to 151,859.10, 227,788.65 and 81,000.30

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Solution

The fourth proportional to 151,859.10, 227,788.65 and 81,000.30 is: 121,500.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,859.10 : 227,788.65 = 81,000.30 : x
  2. Step 2: Convert to fraction form
    151,859.10/227,788.65 = 81,000.30/x
  3. Step 3: Cross multiply
    151,859.10x = 227,788.65 × 81,000.30
  4. Step 4: Simplify right side
    151,859.10x = 18,450,948,986.60
  5. Step 5: Solve for x
    x = 18,450,948,986.60/151,859.10
  6. Step 6: Final answer
    x = 121,500.45

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Similar ratio
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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.