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Finding the Fourth Proportional to 156,651.40, 234,831.30 and 109,266.40

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Solution

The fourth proportional to 156,651.40, 234,831.30 and 109,266.40 is: 163,797.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,651.40 : 234,831.30 = 109,266.40 : x
  2. Step 2: Convert to fraction form
    156,651.40/234,831.30 = 109,266.40/x
  3. Step 3: Cross multiply
    156,651.40x = 234,831.30 × 109,266.40
  4. Step 4: Simplify right side
    156,651.40x = 25,659,170,758.32
  5. Step 5: Solve for x
    x = 25,659,170,758.32/156,651.40
  6. Step 6: Final answer
    x = 163,797.90

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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.