Home / 122,115.24-168,434.90-85,893.51

Finding the Fourth Proportional to 122,115.24, 168,434.90 and 85,893.51

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Solution

The fourth proportional to 122,115.24, 168,434.90 and 85,893.51 is: 118,473.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,115.24 : 168,434.90 = 85,893.51 : x
  2. Step 2: Convert to fraction form
    122,115.24/168,434.90 = 85,893.51/x
  3. Step 3: Cross multiply
    122,115.24x = 168,434.90 × 85,893.51
  4. Step 4: Simplify right side
    122,115.24x = 14,467,464,338.03
  5. Step 5: Solve for x
    x = 14,467,464,338.03/122,115.24
  6. Step 6: Final answer
    x = 118,473.86

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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.