Home / 120,724.46-181,121.24-58,430.06

Finding the Fourth Proportional to 120,724.46, 181,121.24 and 58,430.06

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Solution

The fourth proportional to 120,724.46, 181,121.24 and 58,430.06 is: 87,661.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,724.46 : 181,121.24 = 58,430.06 : x
  2. Step 2: Convert to fraction form
    120,724.46/181,121.24 = 58,430.06/x
  3. Step 3: Cross multiply
    120,724.46x = 181,121.24 × 58,430.06
  4. Step 4: Simplify right side
    120,724.46x = 10,582,924,160.94
  5. Step 5: Solve for x
    x = 10,582,924,160.94/120,724.46
  6. Step 6: Final answer
    x = 87,661.81

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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.