Home / 76,261.92-114,977.94-71,116.86

Finding the Fourth Proportional to 76,261.92, 114,977.94 and 71,116.86

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Solution

The fourth proportional to 76,261.92, 114,977.94 and 71,116.86 is: 107,220.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,261.92 : 114,977.94 = 71,116.86 : x
  2. Step 2: Convert to fraction form
    76,261.92/114,977.94 = 71,116.86/x
  3. Step 3: Cross multiply
    76,261.92x = 114,977.94 × 71,116.86
  4. Step 4: Simplify right side
    76,261.92x = 8,176,870,062.07
  5. Step 5: Solve for x
    x = 8,176,870,062.07/76,261.92
  6. Step 6: Final answer
    x = 107,220.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.