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Finding the Fourth Proportional to 120,171.79, 180,160.48 and 73,408.87

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Solution

The fourth proportional to 120,171.79, 180,160.48 and 73,408.87 is: 110,053.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,171.79 : 180,160.48 = 73,408.87 : x
  2. Step 2: Convert to fraction form
    120,171.79/180,160.48 = 73,408.87/x
  3. Step 3: Cross multiply
    120,171.79x = 180,160.48 × 73,408.87
  4. Step 4: Simplify right side
    120,171.79x = 13,225,377,255.46
  5. Step 5: Solve for x
    x = 13,225,377,255.46/120,171.79
  6. Step 6: Final answer
    x = 110,053.93

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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.