Home / 131,487.10-197,101.05-64,872.70

Finding the Fourth Proportional to 131,487.10, 197,101.05 and 64,872.70

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Solution

The fourth proportional to 131,487.10, 197,101.05 and 64,872.70 is: 97,245.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,487.10 : 197,101.05 = 64,872.70 : x
  2. Step 2: Convert to fraction form
    131,487.10/197,101.05 = 64,872.70/x
  3. Step 3: Cross multiply
    131,487.10x = 197,101.05 × 64,872.70
  4. Step 4: Simplify right side
    131,487.10x = 12,786,477,286.34
  5. Step 5: Solve for x
    x = 12,786,477,286.34/131,487.10
  6. Step 6: Final answer
    x = 97,245.11

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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.