Home / 236,379.35-326,203.05-128,949.35

Finding the Fourth Proportional to 236,379.35, 326,203.05 and 128,949.35

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Solution

The fourth proportional to 236,379.35, 326,203.05 and 128,949.35 is: 177,949.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,379.35 : 326,203.05 = 128,949.35 : x
  2. Step 2: Convert to fraction form
    236,379.35/326,203.05 = 128,949.35/x
  3. Step 3: Cross multiply
    236,379.35x = 326,203.05 × 128,949.35
  4. Step 4: Simplify right side
    236,379.35x = 42,063,672,564.59
  5. Step 5: Solve for x
    x = 42,063,672,564.59/236,379.35
  6. Step 6: Final answer
    x = 177,949.86

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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.