Home / 142,522.92-213,821.26-53,777.18

Finding the Fourth Proportional to 142,522.92, 213,821.26 and 53,777.18

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Solution

The fourth proportional to 142,522.92, 213,821.26 and 53,777.18 is: 80,679.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,522.92 : 213,821.26 = 53,777.18 : x
  2. Step 2: Convert to fraction form
    142,522.92/213,821.26 = 53,777.18/x
  3. Step 3: Cross multiply
    142,522.92x = 213,821.26 × 53,777.18
  4. Step 4: Simplify right side
    142,522.92x = 11,498,704,386.85
  5. Step 5: Solve for x
    x = 11,498,704,386.85/142,522.92
  6. Step 6: Final answer
    x = 80,679.69

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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.