Home / 122,281.60-168,676.94-76,887.64

Finding the Fourth Proportional to 122,281.60, 168,676.94 and 76,887.64

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Solution

The fourth proportional to 122,281.60, 168,676.94 and 76,887.64 is: 106,059.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,281.60 : 168,676.94 = 76,887.64 : x
  2. Step 2: Convert to fraction form
    122,281.60/168,676.94 = 76,887.64/x
  3. Step 3: Cross multiply
    122,281.60x = 168,676.94 × 76,887.64
  4. Step 4: Simplify right side
    122,281.60x = 12,969,171,839.02
  5. Step 5: Solve for x
    x = 12,969,171,839.02/122,281.60
  6. Step 6: Final answer
    x = 106,059.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.