Home / 107,985.05-161,966.61-29,107.25

Finding the Fourth Proportional to 107,985.05, 161,966.61 and 29,107.25

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Solution

The fourth proportional to 107,985.05, 161,966.61 and 29,107.25 is: 43,657.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,985.05 : 161,966.61 = 29,107.25 : x
  2. Step 2: Convert to fraction form
    107,985.05/161,966.61 = 29,107.25/x
  3. Step 3: Cross multiply
    107,985.05x = 161,966.61 × 29,107.25
  4. Step 4: Simplify right side
    107,985.05x = 4,714,401,799.09
  5. Step 5: Solve for x
    x = 4,714,401,799.09/107,985.05
  6. Step 6: Final answer
    x = 43,657.91

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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.