Home / 139,011.54-191,756.58-82,402.26

Finding the Fourth Proportional to 139,011.54, 191,756.58 and 82,402.26

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Solution

The fourth proportional to 139,011.54, 191,756.58 and 82,402.26 is: 113,668.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,011.54 : 191,756.58 = 82,402.26 : x
  2. Step 2: Convert to fraction form
    139,011.54/191,756.58 = 82,402.26/x
  3. Step 3: Cross multiply
    139,011.54x = 191,756.58 × 82,402.26
  4. Step 4: Simplify right side
    139,011.54x = 15,801,175,561.87
  5. Step 5: Solve for x
    x = 15,801,175,561.87/139,011.54
  6. Step 6: Final answer
    x = 113,668.09

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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.