Home / 151,727.20-227,590.80-77,077.60

Finding the Fourth Proportional to 151,727.20, 227,590.80 and 77,077.60

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Solution

The fourth proportional to 151,727.20, 227,590.80 and 77,077.60 is: 115,616.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,727.20 : 227,590.80 = 77,077.60 : x
  2. Step 2: Convert to fraction form
    151,727.20/227,590.80 = 77,077.60/x
  3. Step 3: Cross multiply
    151,727.20x = 227,590.80 × 77,077.60
  4. Step 4: Simplify right side
    151,727.20x = 17,542,152,646.08
  5. Step 5: Solve for x
    x = 17,542,152,646.08/151,727.20
  6. Step 6: Final answer
    x = 115,616.40

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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.