Home / 151,731.20-227,596.80-77,081.60

Finding the Fourth Proportional to 151,731.20, 227,596.80 and 77,081.60

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Solution

The fourth proportional to 151,731.20, 227,596.80 and 77,081.60 is: 115,622.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,731.20 : 227,596.80 = 77,081.60 : x
  2. Step 2: Convert to fraction form
    151,731.20/227,596.80 = 77,081.60/x
  3. Step 3: Cross multiply
    151,731.20x = 227,596.80 × 77,081.60
  4. Step 4: Simplify right side
    151,731.20x = 17,543,525,498.88
  5. Step 5: Solve for x
    x = 17,543,525,498.88/151,731.20
  6. Step 6: Final answer
    x = 115,622.40

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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.