Home / 236,158.70-325,902.44-128,728.76

Finding the Fourth Proportional to 236,158.70, 325,902.44 and 128,728.76

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Solution

The fourth proportional to 236,158.70, 325,902.44 and 128,728.76 is: 177,647.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,158.70 : 325,902.44 = 128,728.76 : x
  2. Step 2: Convert to fraction form
    236,158.70/325,902.44 = 128,728.76/x
  3. Step 3: Cross multiply
    236,158.70x = 325,902.44 × 128,728.76
  4. Step 4: Simplify right side
    236,158.70x = 41,953,016,982.17
  5. Step 5: Solve for x
    x = 41,953,016,982.17/236,158.70
  6. Step 6: Final answer
    x = 177,647.56

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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.