Home / 122,961.40-184,442.10-120,369.40

Finding the Fourth Proportional to 122,961.40, 184,442.10 and 120,369.40

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Solution

The fourth proportional to 122,961.40, 184,442.10 and 120,369.40 is: 180,554.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,961.40 : 184,442.10 = 120,369.40 : x
  2. Step 2: Convert to fraction form
    122,961.40/184,442.10 = 120,369.40/x
  3. Step 3: Cross multiply
    122,961.40x = 184,442.10 × 120,369.40
  4. Step 4: Simplify right side
    122,961.40x = 22,201,184,911.74
  5. Step 5: Solve for x
    x = 22,201,184,911.74/122,961.40
  6. Step 6: Final answer
    x = 180,554.10

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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.