Home / 151,666.20-227,645.10-76,870.80

Finding the Fourth Proportional to 151,666.20, 227,645.10 and 76,870.80

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Solution

The fourth proportional to 151,666.20, 227,645.10 and 76,870.80 is: 115,380.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,666.20 : 227,645.10 = 76,870.80 : x
  2. Step 2: Convert to fraction form
    151,666.20/227,645.10 = 76,870.80/x
  3. Step 3: Cross multiply
    151,666.20x = 227,645.10 × 76,870.80
  4. Step 4: Simplify right side
    151,666.20x = 17,499,260,953.08
  5. Step 5: Solve for x
    x = 17,499,260,953.08/151,666.20
  6. Step 6: Final answer
    x = 115,380.10

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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.