Home / 236,186.48-325,926.60-128,756.72

Finding the Fourth Proportional to 236,186.48, 325,926.60 and 128,756.72

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Solution

The fourth proportional to 236,186.48, 325,926.60 and 128,756.72 is: 177,678.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,186.48 : 325,926.60 = 128,756.72 : x
  2. Step 2: Convert to fraction form
    236,186.48/325,926.60 = 128,756.72/x
  3. Step 3: Cross multiply
    236,186.48x = 325,926.60 × 128,756.72
  4. Step 4: Simplify right side
    236,186.48x = 41,965,239,976.75
  5. Step 5: Solve for x
    x = 41,965,239,976.75/236,186.48
  6. Step 6: Final answer
    x = 177,678.42

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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.