Home / 236,148.21-325,874.54-128,715.68

Finding the Fourth Proportional to 236,148.21, 325,874.54 and 128,715.68

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Solution

The fourth proportional to 236,148.21, 325,874.54 and 128,715.68 is: 177,622.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,148.21 : 325,874.54 = 128,715.68 : x
  2. Step 2: Convert to fraction form
    236,148.21/325,874.54 = 128,715.68/x
  3. Step 3: Cross multiply
    236,148.21x = 325,874.54 × 128,715.68
  4. Step 4: Simplify right side
    236,148.21x = 41,945,164,147.26
  5. Step 5: Solve for x
    x = 41,945,164,147.26/236,148.21
  6. Step 6: Final answer
    x = 177,622.20

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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.