Home / 120,144.28-165,796.32-69,158.02

Finding the Fourth Proportional to 120,144.28, 165,796.32 and 69,158.02

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Solution

The fourth proportional to 120,144.28, 165,796.32 and 69,158.02 is: 95,436.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,144.28 : 165,796.32 = 69,158.02 : x
  2. Step 2: Convert to fraction form
    120,144.28/165,796.32 = 69,158.02/x
  3. Step 3: Cross multiply
    120,144.28x = 165,796.32 × 69,158.02
  4. Step 4: Simplify right side
    120,144.28x = 11,466,145,214.49
  5. Step 5: Solve for x
    x = 11,466,145,214.49/120,144.28
  6. Step 6: Final answer
    x = 95,436.46

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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.