Home / 109,419.20-150,998.97-61,673.34

Finding the Fourth Proportional to 109,419.20, 150,998.97 and 61,673.34

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Solution

The fourth proportional to 109,419.20, 150,998.97 and 61,673.34 is: 85,109.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,419.20 : 150,998.97 = 61,673.34 : x
  2. Step 2: Convert to fraction form
    109,419.20/150,998.97 = 61,673.34/x
  3. Step 3: Cross multiply
    109,419.20x = 150,998.97 × 61,673.34
  4. Step 4: Simplify right side
    109,419.20x = 9,312,610,508.09
  5. Step 5: Solve for x
    x = 9,312,610,508.09/109,419.20
  6. Step 6: Final answer
    x = 85,109.48

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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.