Home / 142,990.20-214,522.56-54,245.52

Finding the Fourth Proportional to 142,990.20, 214,522.56 and 54,245.52

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Solution

The fourth proportional to 142,990.20, 214,522.56 and 54,245.52 is: 81,382.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,990.20 : 214,522.56 = 54,245.52 : x
  2. Step 2: Convert to fraction form
    142,990.20/214,522.56 = 54,245.52/x
  3. Step 3: Cross multiply
    142,990.20x = 214,522.56 × 54,245.52
  4. Step 4: Simplify right side
    142,990.20x = 11,636,887,818.93
  5. Step 5: Solve for x
    x = 11,636,887,818.93/142,990.20
  6. Step 6: Final answer
    x = 81,382.42

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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.