Home / 140,702.73-194,168.28-76,170.52

Finding the Fourth Proportional to 140,702.73, 194,168.28 and 76,170.52

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Solution

The fourth proportional to 140,702.73, 194,168.28 and 76,170.52 is: 105,114.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,702.73 : 194,168.28 = 76,170.52 : x
  2. Step 2: Convert to fraction form
    140,702.73/194,168.28 = 76,170.52/x
  3. Step 3: Cross multiply
    140,702.73x = 194,168.28 × 76,170.52
  4. Step 4: Simplify right side
    140,702.73x = 14,789,898,855.11
  5. Step 5: Solve for x
    x = 14,789,898,855.11/140,702.73
  6. Step 6: Final answer
    x = 105,114.52

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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.