Home / 92,715.10-139,072.65-82,800.70

Finding the Fourth Proportional to 92,715.10, 139,072.65 and 82,800.70

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Solution

The fourth proportional to 92,715.10, 139,072.65 and 82,800.70 is: 124,201.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,715.10 : 139,072.65 = 82,800.70 : x
  2. Step 2: Convert to fraction form
    92,715.10/139,072.65 = 82,800.70/x
  3. Step 3: Cross multiply
    92,715.10x = 139,072.65 × 82,800.70
  4. Step 4: Simplify right side
    92,715.10x = 11,515,312,770.86
  5. Step 5: Solve for x
    x = 11,515,312,770.86/92,715.10
  6. Step 6: Final answer
    x = 124,201.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.