Home / 149,136.90-205,812.44-84,610.50

Finding the Fourth Proportional to 149,136.90, 205,812.44 and 84,610.50

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Solution

The fourth proportional to 149,136.90, 205,812.44 and 84,610.50 is: 116,764.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,136.90 : 205,812.44 = 84,610.50 : x
  2. Step 2: Convert to fraction form
    149,136.90/205,812.44 = 84,610.50/x
  3. Step 3: Cross multiply
    149,136.90x = 205,812.44 × 84,610.50
  4. Step 4: Simplify right side
    149,136.90x = 17,413,893,454.62
  5. Step 5: Solve for x
    x = 17,413,893,454.62/149,136.90
  6. Step 6: Final answer
    x = 116,764.49

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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.