Home / 122,115.52-184,005.42-100,415.04

Finding the Fourth Proportional to 122,115.52, 184,005.42 and 100,415.04

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Solution

The fourth proportional to 122,115.52, 184,005.42 and 100,415.04 is: 151,306.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,115.52 : 184,005.42 = 100,415.04 : x
  2. Step 2: Convert to fraction form
    122,115.52/184,005.42 = 100,415.04/x
  3. Step 3: Cross multiply
    122,115.52x = 184,005.42 × 100,415.04
  4. Step 4: Simplify right side
    122,115.52x = 18,476,911,609.52
  5. Step 5: Solve for x
    x = 18,476,911,609.52/122,115.52
  6. Step 6: Final answer
    x = 151,306.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.