Home / 284,826.12-427,324.82-85,153

Finding the Fourth Proportional to 284,826.12, 427,324.82 and 85,153

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Solution

The fourth proportional to 284,826.12, 427,324.82 and 85,153 is: 127,755.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,826.12 : 427,324.82 = 85,153 : x
  2. Step 2: Convert to fraction form
    284,826.12/427,324.82 = 85,153/x
  3. Step 3: Cross multiply
    284,826.12x = 427,324.82 × 85,153
  4. Step 4: Simplify right side
    284,826.12x = 36,387,990,397.46
  5. Step 5: Solve for x
    x = 36,387,990,397.46/284,826.12
  6. Step 6: Final answer
    x = 127,755.10

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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.