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Finding the Fourth Proportional to 122,260.58, 168,564.57 and 87,376.93

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Solution

The fourth proportional to 122,260.58, 168,564.57 and 87,376.93 is: 120,469.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,260.58 : 168,564.57 = 87,376.93 : x
  2. Step 2: Convert to fraction form
    122,260.58/168,564.57 = 87,376.93/x
  3. Step 3: Cross multiply
    122,260.58x = 168,564.57 × 87,376.93
  4. Step 4: Simplify right side
    122,260.58x = 14,728,654,633.37
  5. Step 5: Solve for x
    x = 14,728,654,633.37/122,260.58
  6. Step 6: Final answer
    x = 120,469.37

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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.