Home / 284,824.12-427,321.82-85,151

Finding the Fourth Proportional to 284,824.12, 427,321.82 and 85,151

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Solution

The fourth proportional to 284,824.12, 427,321.82 and 85,151 is: 127,752.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,824.12 : 427,321.82 = 85,151 : x
  2. Step 2: Convert to fraction form
    284,824.12/427,321.82 = 85,151/x
  3. Step 3: Cross multiply
    284,824.12x = 427,321.82 × 85,151
  4. Step 4: Simplify right side
    284,824.12x = 36,386,880,294.82
  5. Step 5: Solve for x
    x = 36,386,880,294.82/284,824.12
  6. Step 6: Final answer
    x = 127,752.10

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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.