Home / 132,091.56-197,874.90-72,780.12

Finding the Fourth Proportional to 132,091.56, 197,874.90 and 72,780.12

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Solution

The fourth proportional to 132,091.56, 197,874.90 and 72,780.12 is: 109,025.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,091.56 : 197,874.90 = 72,780.12 : x
  2. Step 2: Convert to fraction form
    132,091.56/197,874.90 = 72,780.12/x
  3. Step 3: Cross multiply
    132,091.56x = 197,874.90 × 72,780.12
  4. Step 4: Simplify right side
    132,091.56x = 14,401,358,966.99
  5. Step 5: Solve for x
    x = 14,401,358,966.99/132,091.56
  6. Step 6: Final answer
    x = 109,025.58

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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.