Home / 140,702.32-194,168.30-76,171.08

Finding the Fourth Proportional to 140,702.32, 194,168.30 and 76,171.08

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Solution

The fourth proportional to 140,702.32, 194,168.30 and 76,171.08 is: 105,115.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,702.32 : 194,168.30 = 76,171.08 : x
  2. Step 2: Convert to fraction form
    140,702.32/194,168.30 = 76,171.08/x
  3. Step 3: Cross multiply
    140,702.32x = 194,168.30 × 76,171.08
  4. Step 4: Simplify right side
    140,702.32x = 14,790,009,112.76
  5. Step 5: Solve for x
    x = 14,790,009,112.76/140,702.32
  6. Step 6: Final answer
    x = 105,115.61

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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.