Home / 190,516.10-263,031.04-122,650.65

Finding the Fourth Proportional to 190,516.10, 263,031.04 and 122,650.65

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Solution

The fourth proportional to 190,516.10, 263,031.04 and 122,650.65 is: 169,334.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,516.10 : 263,031.04 = 122,650.65 : x
  2. Step 2: Convert to fraction form
    190,516.10/263,031.04 = 122,650.65/x
  3. Step 3: Cross multiply
    190,516.10x = 263,031.04 × 122,650.65
  4. Step 4: Simplify right side
    190,516.10x = 32,260,928,377.13
  5. Step 5: Solve for x
    x = 32,260,928,377.13/190,516.10
  6. Step 6: Final answer
    x = 169,334.40

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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.