Home / 156,626.60-234,983.10-77,743.40

Finding the Fourth Proportional to 156,626.60, 234,983.10 and 77,743.40

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Solution

The fourth proportional to 156,626.60, 234,983.10 and 77,743.40 is: 116,636.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,626.60 : 234,983.10 = 77,743.40 : x
  2. Step 2: Convert to fraction form
    156,626.60/234,983.10 = 77,743.40/x
  3. Step 3: Cross multiply
    156,626.60x = 234,983.10 × 77,743.40
  4. Step 4: Simplify right side
    156,626.60x = 18,268,385,136.54
  5. Step 5: Solve for x
    x = 18,268,385,136.54/156,626.60
  6. Step 6: Final answer
    x = 116,636.54

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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.