Home / 235,727.29-325,302.69-128,297.31

Finding the Fourth Proportional to 235,727.29, 325,302.69 and 128,297.31

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Solution

The fourth proportional to 235,727.29, 325,302.69 and 128,297.31 is: 177,049.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,727.29 : 325,302.69 = 128,297.31 : x
  2. Step 2: Convert to fraction form
    235,727.29/325,302.69 = 128,297.31/x
  3. Step 3: Cross multiply
    235,727.29x = 325,302.69 × 128,297.31
  4. Step 4: Simplify right side
    235,727.29x = 41,735,460,062.76
  5. Step 5: Solve for x
    x = 41,735,460,062.76/235,727.29
  6. Step 6: Final answer
    x = 177,049.76

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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.