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Finding the Fourth Proportional to 125,465.70, 188,203.79 and 36,719.21

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Solution

The fourth proportional to 125,465.70, 188,203.79 and 36,719.21 is: 55,080.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,465.70 : 188,203.79 = 36,719.21 : x
  2. Step 2: Convert to fraction form
    125,465.70/188,203.79 = 36,719.21/x
  3. Step 3: Cross multiply
    125,465.70x = 188,203.79 × 36,719.21
  4. Step 4: Simplify right side
    125,465.70x = 6,910,694,487.81
  5. Step 5: Solve for x
    x = 6,910,694,487.81/125,465.70
  6. Step 6: Final answer
    x = 55,080.35

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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.