Home / 116,966.75-161,467.76-76,682.21

Finding the Fourth Proportional to 116,966.75, 161,467.76 and 76,682.21

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Solution

The fourth proportional to 116,966.75, 161,467.76 and 76,682.21 is: 105,856.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,966.75 : 161,467.76 = 76,682.21 : x
  2. Step 2: Convert to fraction form
    116,966.75/161,467.76 = 76,682.21/x
  3. Step 3: Cross multiply
    116,966.75x = 161,467.76 × 76,682.21
  4. Step 4: Simplify right side
    116,966.75x = 12,381,704,064.92
  5. Step 5: Solve for x
    x = 12,381,704,064.92/116,966.75
  6. Step 6: Final answer
    x = 105,856.62

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1.5x scale

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.