Home / 236,039.51-325,730.41-128,610.43

Finding the Fourth Proportional to 236,039.51, 325,730.41 and 128,610.43

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Solution

The fourth proportional to 236,039.51, 325,730.41 and 128,610.43 is: 177,480.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,039.51 : 325,730.41 = 128,610.43 : x
  2. Step 2: Convert to fraction form
    236,039.51/325,730.41 = 128,610.43/x
  3. Step 3: Cross multiply
    236,039.51x = 325,730.41 × 128,610.43
  4. Step 4: Simplify right side
    236,039.51x = 41,892,328,094.18
  5. Step 5: Solve for x
    x = 41,892,328,094.18/236,039.51
  6. Step 6: Final answer
    x = 177,480.15

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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.