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Finding the Fourth Proportional to 149,940.01, 206,915.80 and 84,522.89

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Solution

The fourth proportional to 149,940.01, 206,915.80 and 84,522.89 is: 116,640.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,940.01 : 206,915.80 = 84,522.89 : x
  2. Step 2: Convert to fraction form
    149,940.01/206,915.80 = 84,522.89/x
  3. Step 3: Cross multiply
    149,940.01x = 206,915.80 × 84,522.89
  4. Step 4: Simplify right side
    149,940.01x = 17,489,119,945.47
  5. Step 5: Solve for x
    x = 17,489,119,945.47/149,940.01
  6. Step 6: Final answer
    x = 116,640.79

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1.5x scale

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.