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Finding the Fourth Proportional to 139,594.63, 192,624.93 and 82,230.21

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Solution

The fourth proportional to 139,594.63, 192,624.93 and 82,230.21 is: 113,468.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,594.63 : 192,624.93 = 82,230.21 : x
  2. Step 2: Convert to fraction form
    139,594.63/192,624.93 = 82,230.21/x
  3. Step 3: Cross multiply
    139,594.63x = 192,624.93 × 82,230.21
  4. Step 4: Simplify right side
    139,594.63x = 15,839,588,445.14
  5. Step 5: Solve for x
    x = 15,839,588,445.14/139,594.63
  6. Step 6: Final answer
    x = 113,468.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.