Home / 156,735.88-235,114.98-77,770.60

Finding the Fourth Proportional to 156,735.88, 235,114.98 and 77,770.60

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Solution

The fourth proportional to 156,735.88, 235,114.98 and 77,770.60 is: 116,661.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,735.88 : 235,114.98 = 77,770.60 : x
  2. Step 2: Convert to fraction form
    156,735.88/235,114.98 = 77,770.60/x
  3. Step 3: Cross multiply
    156,735.88x = 235,114.98 × 77,770.60
  4. Step 4: Simplify right side
    156,735.88x = 18,285,033,063.59
  5. Step 5: Solve for x
    x = 18,285,033,063.59/156,735.88
  6. Step 6: Final answer
    x = 116,661.44

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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.