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Finding the Fourth Proportional to 125,469.78, 188,214.39 and 55,336.74

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Solution

The fourth proportional to 125,469.78, 188,214.39 and 55,336.74 is: 83,009.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,469.78 : 188,214.39 = 55,336.74 : x
  2. Step 2: Convert to fraction form
    125,469.78/188,214.39 = 55,336.74/x
  3. Step 3: Cross multiply
    125,469.78x = 188,214.39 × 55,336.74
  4. Step 4: Simplify right side
    125,469.78x = 10,415,170,763.69
  5. Step 5: Solve for x
    x = 10,415,170,763.69/125,469.78
  6. Step 6: Final answer
    x = 83,009.40

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1.5x scale

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.