Home / 120,734.96-181,280.16-67,531.16

Finding the Fourth Proportional to 120,734.96, 181,280.16 and 67,531.16

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Solution

The fourth proportional to 120,734.96, 181,280.16 and 67,531.16 is: 101,396.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,734.96 : 181,280.16 = 67,531.16 : x
  2. Step 2: Convert to fraction form
    120,734.96/181,280.16 = 67,531.16/x
  3. Step 3: Cross multiply
    120,734.96x = 181,280.16 × 67,531.16
  4. Step 4: Simplify right side
    120,734.96x = 12,242,059,489.79
  5. Step 5: Solve for x
    x = 12,242,059,489.79/120,734.96
  6. Step 6: Final answer
    x = 101,396.14

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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.