Home / 133,213.02-199,647.27-99,669.90

Finding the Fourth Proportional to 133,213.02, 199,647.27 and 99,669.90

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Solution

The fourth proportional to 133,213.02, 199,647.27 and 99,669.90 is: 149,375.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,213.02 : 199,647.27 = 99,669.90 : x
  2. Step 2: Convert to fraction form
    133,213.02/199,647.27 = 99,669.90/x
  3. Step 3: Cross multiply
    133,213.02x = 199,647.27 × 99,669.90
  4. Step 4: Simplify right side
    133,213.02x = 19,898,823,436.17
  5. Step 5: Solve for x
    x = 19,898,823,436.17/133,213.02
  6. Step 6: Final answer
    x = 149,375.97

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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.