Home / 125,571.90-188,136.44-66,276.94

Finding the Fourth Proportional to 125,571.90, 188,136.44 and 66,276.94

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Solution

The fourth proportional to 125,571.90, 188,136.44 and 66,276.94 is: 99,298.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,571.90 : 188,136.44 = 66,276.94 : x
  2. Step 2: Convert to fraction form
    125,571.90/188,136.44 = 66,276.94/x
  3. Step 3: Cross multiply
    125,571.90x = 188,136.44 × 66,276.94
  4. Step 4: Simplify right side
    125,571.90x = 12,469,107,545.69
  5. Step 5: Solve for x
    x = 12,469,107,545.69/125,571.90
  6. Step 6: Final answer
    x = 99,298.55

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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.