Home / 236,290.77-326,078.33-128,858.31

Finding the Fourth Proportional to 236,290.77, 326,078.33 and 128,858.31

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Solution

The fourth proportional to 236,290.77, 326,078.33 and 128,858.31 is: 177,822.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,290.77 : 326,078.33 = 128,858.31 : x
  2. Step 2: Convert to fraction form
    236,290.77/326,078.33 = 128,858.31/x
  3. Step 3: Cross multiply
    236,290.77x = 326,078.33 × 128,858.31
  4. Step 4: Simplify right side
    236,290.77x = 42,017,901,887.13
  5. Step 5: Solve for x
    x = 42,017,901,887.13/236,290.77
  6. Step 6: Final answer
    x = 177,822.87

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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.