Home / 122,972.10-184,458.15-120,639.30

Finding the Fourth Proportional to 122,972.10, 184,458.15 and 120,639.30

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Solution

The fourth proportional to 122,972.10, 184,458.15 and 120,639.30 is: 180,958.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,972.10 : 184,458.15 = 120,639.30 : x
  2. Step 2: Convert to fraction form
    122,972.10/184,458.15 = 120,639.30/x
  3. Step 3: Cross multiply
    122,972.10x = 184,458.15 × 120,639.30
  4. Step 4: Simplify right side
    122,972.10x = 22,252,902,095.30
  5. Step 5: Solve for x
    x = 22,252,902,095.30/122,972.10
  6. Step 6: Final answer
    x = 180,958.95

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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.