Home / 236,399.19-326,230.17-128,968.46

Finding the Fourth Proportional to 236,399.19, 326,230.17 and 128,968.46

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Solution

The fourth proportional to 236,399.19, 326,230.17 and 128,968.46 is: 177,976.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,399.19 : 326,230.17 = 128,968.46 : x
  2. Step 2: Convert to fraction form
    236,399.19/326,230.17 = 128,968.46/x
  3. Step 3: Cross multiply
    236,399.19x = 326,230.17 × 128,968.46
  4. Step 4: Simplify right side
    236,399.19x = 42,073,400,999.29
  5. Step 5: Solve for x
    x = 42,073,400,999.29/236,399.19
  6. Step 6: Final answer
    x = 177,976.08

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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.