Home / 187,197.76-280,548.24-81,902.08

Finding the Fourth Proportional to 187,197.76, 280,548.24 and 81,902.08

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Solution

The fourth proportional to 187,197.76, 280,548.24 and 81,902.08 is: 122,744.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,197.76 : 280,548.24 = 81,902.08 : x
  2. Step 2: Convert to fraction form
    187,197.76/280,548.24 = 81,902.08/x
  3. Step 3: Cross multiply
    187,197.76x = 280,548.24 × 81,902.08
  4. Step 4: Simplify right side
    187,197.76x = 22,977,484,396.34
  5. Step 5: Solve for x
    x = 22,977,484,396.34/187,197.76
  6. Step 6: Final answer
    x = 122,744.44

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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.