Home / 151,812.20-227,864.10-77,016.80

Finding the Fourth Proportional to 151,812.20, 227,864.10 and 77,016.80

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Solution

The fourth proportional to 151,812.20, 227,864.10 and 77,016.80 is: 115,599.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,812.20 : 227,864.10 = 77,016.80 : x
  2. Step 2: Convert to fraction form
    151,812.20/227,864.10 = 77,016.80/x
  3. Step 3: Cross multiply
    151,812.20x = 227,864.10 × 77,016.80
  4. Step 4: Simplify right side
    151,812.20x = 17,549,363,816.88
  5. Step 5: Solve for x
    x = 17,549,363,816.88/151,812.20
  6. Step 6: Final answer
    x = 115,599.17

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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.