Home / 236,009.92-325,692.40-128,579.68

Finding the Fourth Proportional to 236,009.92, 325,692.40 and 128,579.68

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Solution

The fourth proportional to 236,009.92, 325,692.40 and 128,579.68 is: 177,439.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,009.92 : 325,692.40 = 128,579.68 : x
  2. Step 2: Convert to fraction form
    236,009.92/325,692.40 = 128,579.68/x
  3. Step 3: Cross multiply
    236,009.92x = 325,692.40 × 128,579.68
  4. Step 4: Simplify right side
    236,009.92x = 41,877,424,570.43
  5. Step 5: Solve for x
    x = 41,877,424,570.43/236,009.92
  6. Step 6: Final answer
    x = 177,439.26

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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.