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Finding the Fourth Proportional to 130,274.40, 194,893.20 and 112,936.80

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Solution

The fourth proportional to 130,274.40, 194,893.20 and 112,936.80 is: 168,955.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,274.40 : 194,893.20 = 112,936.80 : x
  2. Step 2: Convert to fraction form
    130,274.40/194,893.20 = 112,936.80/x
  3. Step 3: Cross multiply
    130,274.40x = 194,893.20 × 112,936.80
  4. Step 4: Simplify right side
    130,274.40x = 22,010,614,349.76
  5. Step 5: Solve for x
    x = 22,010,614,349.76/130,274.40
  6. Step 6: Final answer
    x = 168,955.79

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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.