Home / 236,139.94-325,863.66-128,707.72

Finding the Fourth Proportional to 236,139.94, 325,863.66 and 128,707.72

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Solution

The fourth proportional to 236,139.94, 325,863.66 and 128,707.72 is: 177,611.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,139.94 : 325,863.66 = 128,707.72 : x
  2. Step 2: Convert to fraction form
    236,139.94/325,863.66 = 128,707.72/x
  3. Step 3: Cross multiply
    236,139.94x = 325,863.66 × 128,707.72
  4. Step 4: Simplify right side
    236,139.94x = 41,941,168,709.46
  5. Step 5: Solve for x
    x = 41,941,168,709.46/236,139.94
  6. Step 6: Final answer
    x = 177,611.50

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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.