Home / 139,184.64-192,011.04-82,575.36

Finding the Fourth Proportional to 139,184.64, 192,011.04 and 82,575.36

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Solution

The fourth proportional to 139,184.64, 192,011.04 and 82,575.36 is: 113,916.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,184.64 : 192,011.04 = 82,575.36 : x
  2. Step 2: Convert to fraction form
    139,184.64/192,011.04 = 82,575.36/x
  3. Step 3: Cross multiply
    139,184.64x = 192,011.04 × 82,575.36
  4. Step 4: Simplify right side
    139,184.64x = 15,855,380,751.97
  5. Step 5: Solve for x
    x = 15,855,380,751.97/139,184.64
  6. Step 6: Final answer
    x = 113,916.17

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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.