Home / 131,491.72-197,101.50-64,842.76

Finding the Fourth Proportional to 131,491.72, 197,101.50 and 64,842.76

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Solution

The fourth proportional to 131,491.72, 197,101.50 and 64,842.76 is: 97,197.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,491.72 : 197,101.50 = 64,842.76 : x
  2. Step 2: Convert to fraction form
    131,491.72/197,101.50 = 64,842.76/x
  3. Step 3: Cross multiply
    131,491.72x = 197,101.50 × 64,842.76
  4. Step 4: Simplify right side
    131,491.72x = 12,780,605,260.14
  5. Step 5: Solve for x
    x = 12,780,605,260.14/131,491.72
  6. Step 6: Final answer
    x = 97,197.03

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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.