Home / 107,985.13-161,981.49-29,101.24

Finding the Fourth Proportional to 107,985.13, 161,981.49 and 29,101.24

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Solution

The fourth proportional to 107,985.13, 161,981.49 and 29,101.24 is: 43,652.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,985.13 : 161,981.49 = 29,101.24 : x
  2. Step 2: Convert to fraction form
    107,985.13/161,981.49 = 29,101.24/x
  3. Step 3: Cross multiply
    107,985.13x = 161,981.49 × 29,101.24
  4. Step 4: Simplify right side
    107,985.13x = 4,713,862,216.05
  5. Step 5: Solve for x
    x = 4,713,862,216.05/107,985.13
  6. Step 6: Final answer
    x = 43,652.88

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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.