Home / 151,949.75-209,690.66-84,881.75

Finding the Fourth Proportional to 151,949.75, 209,690.66 and 84,881.75

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Solution

The fourth proportional to 151,949.75, 209,690.66 and 84,881.75 is: 117,136.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,949.75 : 209,690.66 = 84,881.75 : x
  2. Step 2: Convert to fraction form
    151,949.75/209,690.66 = 84,881.75/x
  3. Step 3: Cross multiply
    151,949.75x = 209,690.66 × 84,881.75
  4. Step 4: Simplify right side
    151,949.75x = 17,798,910,179.46
  5. Step 5: Solve for x
    x = 17,798,910,179.46/151,949.75
  6. Step 6: Final answer
    x = 117,136.82

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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.