Home / 107,788.30-161,669.68-28,908.07

Finding the Fourth Proportional to 107,788.30, 161,669.68 and 28,908.07

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Solution

The fourth proportional to 107,788.30, 161,669.68 and 28,908.07 is: 43,358.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,788.30 : 161,669.68 = 28,908.07 : x
  2. Step 2: Convert to fraction form
    107,788.30/161,669.68 = 28,908.07/x
  3. Step 3: Cross multiply
    107,788.30x = 161,669.68 × 28,908.07
  4. Step 4: Simplify right side
    107,788.30x = 4,673,558,426.32
  5. Step 5: Solve for x
    x = 4,673,558,426.32/107,788.30
  6. Step 6: Final answer
    x = 43,358.68

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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.