Home / 156,747.20-235,120.80-116,830.40

Finding the Fourth Proportional to 156,747.20, 235,120.80 and 116,830.40

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Solution

The fourth proportional to 156,747.20, 235,120.80 and 116,830.40 is: 175,245.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,747.20 : 235,120.80 = 116,830.40 : x
  2. Step 2: Convert to fraction form
    156,747.20/235,120.80 = 116,830.40/x
  3. Step 3: Cross multiply
    156,747.20x = 235,120.80 × 116,830.40
  4. Step 4: Simplify right side
    156,747.20x = 27,469,257,112.32
  5. Step 5: Solve for x
    x = 27,469,257,112.32/156,747.20
  6. Step 6: Final answer
    x = 175,245.60

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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.