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Finding the Fourth Proportional to 129,548.81, 194,323.23 and 55,676.81

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Solution

The fourth proportional to 129,548.81, 194,323.23 and 55,676.81 is: 83,515.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,548.81 : 194,323.23 = 55,676.81 : x
  2. Step 2: Convert to fraction form
    129,548.81/194,323.23 = 55,676.81/x
  3. Step 3: Cross multiply
    129,548.81x = 194,323.23 × 55,676.81
  4. Step 4: Simplify right side
    129,548.81x = 10,819,298,041.10
  5. Step 5: Solve for x
    x = 10,819,298,041.10/129,548.81
  6. Step 6: Final answer
    x = 83,515.22

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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.