Home / 142,834.12-214,401.84-139,617.14

Finding the Fourth Proportional to 142,834.12, 214,401.84 and 139,617.14

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Solution

The fourth proportional to 142,834.12, 214,401.84 and 139,617.14 is: 209,572.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,834.12 : 214,401.84 = 139,617.14 : x
  2. Step 2: Convert to fraction form
    142,834.12/214,401.84 = 139,617.14/x
  3. Step 3: Cross multiply
    142,834.12x = 214,401.84 × 139,617.14
  4. Step 4: Simplify right side
    142,834.12x = 29,934,170,115.96
  5. Step 5: Solve for x
    x = 29,934,170,115.96/142,834.12
  6. Step 6: Final answer
    x = 209,572.97

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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.