Home / 120,812.36-181,193.90-45,906.21

Finding the Fourth Proportional to 120,812.36, 181,193.90 and 45,906.21

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Solution

The fourth proportional to 120,812.36, 181,193.90 and 45,906.21 is: 68,849.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,812.36 : 181,193.90 = 45,906.21 : x
  2. Step 2: Convert to fraction form
    120,812.36/181,193.90 = 45,906.21/x
  3. Step 3: Cross multiply
    120,812.36x = 181,193.90 × 45,906.21
  4. Step 4: Simplify right side
    120,812.36x = 8,317,924,994.59
  5. Step 5: Solve for x
    x = 8,317,924,994.59/120,812.36
  6. Step 6: Final answer
    x = 68,849.95

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1.5x scale

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.