Home / 190,331.91-285,499.89-77,983.29

Finding the Fourth Proportional to 190,331.91, 285,499.89 and 77,983.29

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Solution

The fourth proportional to 190,331.91, 285,499.89 and 77,983.29 is: 116,975.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,331.91 : 285,499.89 = 77,983.29 : x
  2. Step 2: Convert to fraction form
    190,331.91/285,499.89 = 77,983.29/x
  3. Step 3: Cross multiply
    190,331.91x = 285,499.89 × 77,983.29
  4. Step 4: Simplify right side
    190,331.91x = 22,264,220,716.84
  5. Step 5: Solve for x
    x = 22,264,220,716.84/190,331.91
  6. Step 6: Final answer
    x = 116,975.76

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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.