Home / 236,408.10-326,231.19-128,977.26

Finding the Fourth Proportional to 236,408.10, 326,231.19 and 128,977.26

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Solution

The fourth proportional to 236,408.10, 326,231.19 and 128,977.26 is: 177,982.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,408.10 : 326,231.19 = 128,977.26 : x
  2. Step 2: Convert to fraction form
    236,408.10/326,231.19 = 128,977.26/x
  3. Step 3: Cross multiply
    236,408.10x = 326,231.19 × 128,977.26
  4. Step 4: Simplify right side
    236,408.10x = 42,076,405,012.74
  5. Step 5: Solve for x
    x = 42,076,405,012.74/236,408.10
  6. Step 6: Final answer
    x = 177,982.08

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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.