Home / 122,717.60-184,184.40-72,735.20

Finding the Fourth Proportional to 122,717.60, 184,184.40 and 72,735.20

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Solution

The fourth proportional to 122,717.60, 184,184.40 and 72,735.20 is: 109,166.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,717.60 : 184,184.40 = 72,735.20 : x
  2. Step 2: Convert to fraction form
    122,717.60/184,184.40 = 72,735.20/x
  3. Step 3: Cross multiply
    122,717.60x = 184,184.40 × 72,735.20
  4. Step 4: Simplify right side
    122,717.60x = 13,396,689,170.88
  5. Step 5: Solve for x
    x = 13,396,689,170.88/122,717.60
  6. Step 6: Final answer
    x = 109,166.81

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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.