Home / 199,384.20-275,242.34-122,916.96

Finding the Fourth Proportional to 199,384.20, 275,242.34 and 122,916.96

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Solution

The fourth proportional to 199,384.20, 275,242.34 and 122,916.96 is: 169,682.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,384.20 : 275,242.34 = 122,916.96 : x
  2. Step 2: Convert to fraction form
    199,384.20/275,242.34 = 122,916.96/x
  3. Step 3: Cross multiply
    199,384.20x = 275,242.34 × 122,916.96
  4. Step 4: Simplify right side
    199,384.20x = 33,831,951,081.50
  5. Step 5: Solve for x
    x = 33,831,951,081.50/199,384.20
  6. Step 6: Final answer
    x = 169,682.21

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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.