Home / 120,667.20-181,026.82-36,420.32

Finding the Fourth Proportional to 120,667.20, 181,026.82 and 36,420.32

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Solution

The fourth proportional to 120,667.20, 181,026.82 and 36,420.32 is: 54,638.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,667.20 : 181,026.82 = 36,420.32 : x
  2. Step 2: Convert to fraction form
    120,667.20/181,026.82 = 36,420.32/x
  3. Step 3: Cross multiply
    120,667.20x = 181,026.82 × 36,420.32
  4. Step 4: Simplify right side
    120,667.20x = 6,593,054,712.98
  5. Step 5: Solve for x
    x = 6,593,054,712.98/120,667.20
  6. Step 6: Final answer
    x = 54,638.33

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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.