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Finding the Fourth Proportional to 109,999.21, 164,998.81 and 57,396.39

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Solution

The fourth proportional to 109,999.21, 164,998.81 and 57,396.39 is: 86,094.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,999.21 : 164,998.81 = 57,396.39 : x
  2. Step 2: Convert to fraction form
    109,999.21/164,998.81 = 57,396.39/x
  3. Step 3: Cross multiply
    109,999.21x = 164,998.81 × 57,396.39
  4. Step 4: Simplify right side
    109,999.21x = 9,470,334,936.32
  5. Step 5: Solve for x
    x = 9,470,334,936.32/109,999.21
  6. Step 6: Final answer
    x = 86,094.58

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1.5x scale

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.