Home / 134,011.78-201,020.40-55,115.74

Finding the Fourth Proportional to 134,011.78, 201,020.40 and 55,115.74

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Solution

The fourth proportional to 134,011.78, 201,020.40 and 55,115.74 is: 82,674.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,011.78 : 201,020.40 = 55,115.74 : x
  2. Step 2: Convert to fraction form
    134,011.78/201,020.40 = 55,115.74/x
  3. Step 3: Cross multiply
    134,011.78x = 201,020.40 × 55,115.74
  4. Step 4: Simplify right side
    134,011.78x = 11,079,388,101.10
  5. Step 5: Solve for x
    x = 11,079,388,101.10/134,011.78
  6. Step 6: Final answer
    x = 82,674.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.