Home / 125,266.92-187,782.78-42,102.60

Finding the Fourth Proportional to 125,266.92, 187,782.78 and 42,102.60

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Solution

The fourth proportional to 125,266.92, 187,782.78 and 42,102.60 is: 63,114.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,266.92 : 187,782.78 = 42,102.60 : x
  2. Step 2: Convert to fraction form
    125,266.92/187,782.78 = 42,102.60/x
  3. Step 3: Cross multiply
    125,266.92x = 187,782.78 × 42,102.60
  4. Step 4: Simplify right side
    125,266.92x = 7,906,143,273.23
  5. Step 5: Solve for x
    x = 7,906,143,273.23/125,266.92
  6. Step 6: Final answer
    x = 63,114.37

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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.