Home / 148,939.60-205,528.11-80,956.02

Finding the Fourth Proportional to 148,939.60, 205,528.11 and 80,956.02

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Solution

The fourth proportional to 148,939.60, 205,528.11 and 80,956.02 is: 111,714.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,939.60 : 205,528.11 = 80,956.02 : x
  2. Step 2: Convert to fraction form
    148,939.60/205,528.11 = 80,956.02/x
  3. Step 3: Cross multiply
    148,939.60x = 205,528.11 × 80,956.02
  4. Step 4: Simplify right side
    148,939.60x = 16,638,737,611.48
  5. Step 5: Solve for x
    x = 16,638,737,611.48/148,939.60
  6. Step 6: Final answer
    x = 111,714.67

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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.