Home / 143,234.16-214,738.92-90,533.04

Finding the Fourth Proportional to 143,234.16, 214,738.92 and 90,533.04

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Solution

The fourth proportional to 143,234.16, 214,738.92 and 90,533.04 is: 135,728.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,234.16 : 214,738.92 = 90,533.04 : x
  2. Step 2: Convert to fraction form
    143,234.16/214,738.92 = 90,533.04/x
  3. Step 3: Cross multiply
    143,234.16x = 214,738.92 × 90,533.04
  4. Step 4: Simplify right side
    143,234.16x = 19,440,967,233.92
  5. Step 5: Solve for x
    x = 19,440,967,233.92/143,234.16
  6. Step 6: Final answer
    x = 135,728.57

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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.