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Finding the Fourth Proportional to 134,665.40, 201,996.86 and 51,559.40

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Solution

The fourth proportional to 134,665.40, 201,996.86 and 51,559.40 is: 77,338.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,665.40 : 201,996.86 = 51,559.40 : x
  2. Step 2: Convert to fraction form
    134,665.40/201,996.86 = 51,559.40/x
  3. Step 3: Cross multiply
    134,665.40x = 201,996.86 × 51,559.40
  4. Step 4: Simplify right side
    134,665.40x = 10,414,837,150.68
  5. Step 5: Solve for x
    x = 10,414,837,150.68/134,665.40
  6. Step 6: Final answer
    x = 77,338.63

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1.5x scale

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.