Home / 236,811.36-355,220.96-79,040.64

Finding the Fourth Proportional to 236,811.36, 355,220.96 and 79,040.64

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Solution

The fourth proportional to 236,811.36, 355,220.96 and 79,040.64 is: 118,562.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,811.36 : 355,220.96 = 79,040.64 : x
  2. Step 2: Convert to fraction form
    236,811.36/355,220.96 = 79,040.64/x
  3. Step 3: Cross multiply
    236,811.36x = 355,220.96 × 79,040.64
  4. Step 4: Simplify right side
    236,811.36x = 28,076,892,019.81
  5. Step 5: Solve for x
    x = 28,076,892,019.81/236,811.36
  6. Step 6: Final answer
    x = 118,562.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.