Home / 123,576.04-186,234.58-111,743.28

Finding the Fourth Proportional to 123,576.04, 186,234.58 and 111,743.28

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Solution

The fourth proportional to 123,576.04, 186,234.58 and 111,743.28 is: 168,402.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,576.04 : 186,234.58 = 111,743.28 : x
  2. Step 2: Convert to fraction form
    123,576.04/186,234.58 = 111,743.28/x
  3. Step 3: Cross multiply
    123,576.04x = 186,234.58 × 111,743.28
  4. Step 4: Simplify right side
    123,576.04x = 20,810,462,818.62
  5. Step 5: Solve for x
    x = 20,810,462,818.62/123,576.04
  6. Step 6: Final answer
    x = 168,402.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.