Home / 236,135.06-325,864.30-128,705.10

Finding the Fourth Proportional to 236,135.06, 325,864.30 and 128,705.10

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Solution

The fourth proportional to 236,135.06, 325,864.30 and 128,705.10 is: 177,611.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,135.06 : 325,864.30 = 128,705.10 : x
  2. Step 2: Convert to fraction form
    236,135.06/325,864.30 = 128,705.10/x
  3. Step 3: Cross multiply
    236,135.06x = 325,864.30 × 128,705.10
  4. Step 4: Simplify right side
    236,135.06x = 41,940,397,317.93
  5. Step 5: Solve for x
    x = 41,940,397,317.93/236,135.06
  6. Step 6: Final answer
    x = 177,611.90

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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.