Home / 236,151.28-325,883.93-128,720.37

Finding the Fourth Proportional to 236,151.28, 325,883.93 and 128,720.37

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Solution

The fourth proportional to 236,151.28, 325,883.93 and 128,720.37 is: 177,631.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,151.28 : 325,883.93 = 128,720.37 : x
  2. Step 2: Convert to fraction form
    236,151.28/325,883.93 = 128,720.37/x
  3. Step 3: Cross multiply
    236,151.28x = 325,883.93 × 128,720.37
  4. Step 4: Simplify right side
    236,151.28x = 41,947,900,625.12
  5. Step 5: Solve for x
    x = 41,947,900,625.12/236,151.28
  6. Step 6: Final answer
    x = 177,631.48

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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.