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Finding the Fourth Proportional to 159,465.60, 239,198.40 and 122,140.80

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Solution

The fourth proportional to 159,465.60, 239,198.40 and 122,140.80 is: 183,211.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,465.60 : 239,198.40 = 122,140.80 : x
  2. Step 2: Convert to fraction form
    159,465.60/239,198.40 = 122,140.80/x
  3. Step 3: Cross multiply
    159,465.60x = 239,198.40 × 122,140.80
  4. Step 4: Simplify right side
    159,465.60x = 29,215,883,934.72
  5. Step 5: Solve for x
    x = 29,215,883,934.72/159,465.60
  6. Step 6: Final answer
    x = 183,211.20

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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.