Home / 122,930.50-184,551.39-75,428.90

Finding the Fourth Proportional to 122,930.50, 184,551.39 and 75,428.90

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Solution

The fourth proportional to 122,930.50, 184,551.39 and 75,428.90 is: 113,238.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,930.50 : 184,551.39 = 75,428.90 : x
  2. Step 2: Convert to fraction form
    122,930.50/184,551.39 = 75,428.90/x
  3. Step 3: Cross multiply
    122,930.50x = 184,551.39 × 75,428.90
  4. Step 4: Simplify right side
    122,930.50x = 13,920,508,341.17
  5. Step 5: Solve for x
    x = 13,920,508,341.17/122,930.50
  6. Step 6: Final answer
    x = 113,238.85

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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.