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Finding the Fourth Proportional to 120,093.84, 180,140.40 and 84,408.24

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Solution

The fourth proportional to 120,093.84, 180,140.40 and 84,408.24 is: 126,612.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,093.84 : 180,140.40 = 84,408.24 : x
  2. Step 2: Convert to fraction form
    120,093.84/180,140.40 = 84,408.24/x
  3. Step 3: Cross multiply
    120,093.84x = 180,140.40 × 84,408.24
  4. Step 4: Simplify right side
    120,093.84x = 15,205,334,116.90
  5. Step 5: Solve for x
    x = 15,205,334,116.90/120,093.84
  6. Step 6: Final answer
    x = 126,612.11

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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.