Home / 140,479.38-193,861.62-76,823.10

Finding the Fourth Proportional to 140,479.38, 193,861.62 and 76,823.10

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Solution

The fourth proportional to 140,479.38, 193,861.62 and 76,823.10 is: 106,015.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,479.38 : 193,861.62 = 76,823.10 : x
  2. Step 2: Convert to fraction form
    140,479.38/193,861.62 = 76,823.10/x
  3. Step 3: Cross multiply
    140,479.38x = 193,861.62 × 76,823.10
  4. Step 4: Simplify right side
    140,479.38x = 14,893,050,619.42
  5. Step 5: Solve for x
    x = 14,893,050,619.42/140,479.38
  6. Step 6: Final answer
    x = 106,015.92

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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.