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Finding the Fourth Proportional to 130,017.60, 195,026.40 and 79,935.30

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Solution

The fourth proportional to 130,017.60, 195,026.40 and 79,935.30 is: 119,902.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,017.60 : 195,026.40 = 79,935.30 : x
  2. Step 2: Convert to fraction form
    130,017.60/195,026.40 = 79,935.30/x
  3. Step 3: Cross multiply
    130,017.60x = 195,026.40 × 79,935.30
  4. Step 4: Simplify right side
    130,017.60x = 15,589,493,791.92
  5. Step 5: Solve for x
    x = 15,589,493,791.92/130,017.60
  6. Step 6: Final answer
    x = 119,902.95

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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.