Home / 142,911.18-214,369.20-54,206.46

Finding the Fourth Proportional to 142,911.18, 214,369.20 and 54,206.46

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Solution

The fourth proportional to 142,911.18, 214,369.20 and 54,206.46 is: 81,310.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,911.18 : 214,369.20 = 54,206.46 : x
  2. Step 2: Convert to fraction form
    142,911.18/214,369.20 = 54,206.46/x
  3. Step 3: Cross multiply
    142,911.18x = 214,369.20 × 54,206.46
  4. Step 4: Simplify right side
    142,911.18x = 11,620,195,465.03
  5. Step 5: Solve for x
    x = 11,620,195,465.03/142,911.18
  6. Step 6: Final answer
    x = 81,310.61

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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.