Home / 148,956.21-205,560.45-80,973.72

Finding the Fourth Proportional to 148,956.21, 205,560.45 and 80,973.72

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Solution

The fourth proportional to 148,956.21, 205,560.45 and 80,973.72 is: 111,744.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,956.21 : 205,560.45 = 80,973.72 : x
  2. Step 2: Convert to fraction form
    148,956.21/205,560.45 = 80,973.72/x
  3. Step 3: Cross multiply
    148,956.21x = 205,560.45 × 80,973.72
  4. Step 4: Simplify right side
    148,956.21x = 16,644,994,321.37
  5. Step 5: Solve for x
    x = 16,644,994,321.37/148,956.21
  6. Step 6: Final answer
    x = 111,744.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.