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Finding the Fourth Proportional to 149,495.98, 206,354.45 and 89,085.58

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Solution

The fourth proportional to 149,495.98, 206,354.45 and 89,085.58 is: 122,967.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,495.98 : 206,354.45 = 89,085.58 : x
  2. Step 2: Convert to fraction form
    149,495.98/206,354.45 = 89,085.58/x
  3. Step 3: Cross multiply
    149,495.98x = 206,354.45 × 89,085.58
  4. Step 4: Simplify right side
    149,495.98x = 18,383,205,863.83
  5. Step 5: Solve for x
    x = 18,383,205,863.83/149,495.98
  6. Step 6: Final answer
    x = 122,967.89

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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.