Home / 76,079.70-113,562.14-67,101.80

Finding the Fourth Proportional to 76,079.70, 113,562.14 and 67,101.80

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Solution

The fourth proportional to 76,079.70, 113,562.14 and 67,101.80 is: 100,161.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,079.70 : 113,562.14 = 67,101.80 : x
  2. Step 2: Convert to fraction form
    76,079.70/113,562.14 = 67,101.80/x
  3. Step 3: Cross multiply
    76,079.70x = 113,562.14 × 67,101.80
  4. Step 4: Simplify right side
    76,079.70x = 7,620,224,005.85
  5. Step 5: Solve for x
    x = 7,620,224,005.85/76,079.70
  6. Step 6: Final answer
    x = 100,161.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.