Home / 140,377.36-193,720.83-76,715.15

Finding the Fourth Proportional to 140,377.36, 193,720.83 and 76,715.15

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Solution

The fourth proportional to 140,377.36, 193,720.83 and 76,715.15 is: 105,866.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,377.36 : 193,720.83 = 76,715.15 : x
  2. Step 2: Convert to fraction form
    140,377.36/193,720.83 = 76,715.15/x
  3. Step 3: Cross multiply
    140,377.36x = 193,720.83 × 76,715.15
  4. Step 4: Simplify right side
    140,377.36x = 14,861,323,015.88
  5. Step 5: Solve for x
    x = 14,861,323,015.88/140,377.36
  6. Step 6: Final answer
    x = 105,866.95

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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.