Home / 235,776.24-325,371.96-128,347.20

Finding the Fourth Proportional to 235,776.24, 325,371.96 and 128,347.20

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Solution

The fourth proportional to 235,776.24, 325,371.96 and 128,347.20 is: 177,119.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,776.24 : 325,371.96 = 128,347.20 : x
  2. Step 2: Convert to fraction form
    235,776.24/325,371.96 = 128,347.20/x
  3. Step 3: Cross multiply
    235,776.24x = 325,371.96 × 128,347.20
  4. Step 4: Simplify right side
    235,776.24x = 41,760,580,024.51
  5. Step 5: Solve for x
    x = 41,760,580,024.51/235,776.24
  6. Step 6: Final answer
    x = 177,119.54

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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.