Home / 120,724.96-181,122.00-58,430.56

Finding the Fourth Proportional to 120,724.96, 181,122.00 and 58,430.56

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Solution

The fourth proportional to 120,724.96, 181,122.00 and 58,430.56 is: 87,662.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,724.96 : 181,122.00 = 58,430.56 : x
  2. Step 2: Convert to fraction form
    120,724.96/181,122.00 = 58,430.56/x
  3. Step 3: Cross multiply
    120,724.96x = 181,122.00 × 58,430.56
  4. Step 4: Simplify right side
    120,724.96x = 10,583,058,690.56
  5. Step 5: Solve for x
    x = 10,583,058,690.56/120,724.96
  6. Step 6: Final answer
    x = 87,662.56

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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.