Home / 236,729.86-355,098.03-78,958.46

Finding the Fourth Proportional to 236,729.86, 355,098.03 and 78,958.46

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Solution

The fourth proportional to 236,729.86, 355,098.03 and 78,958.46 is: 118,438.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,729.86 : 355,098.03 = 78,958.46 : x
  2. Step 2: Convert to fraction form
    236,729.86/355,098.03 = 78,958.46/x
  3. Step 3: Cross multiply
    236,729.86x = 355,098.03 × 78,958.46
  4. Step 4: Simplify right side
    236,729.86x = 28,037,994,189.48
  5. Step 5: Solve for x
    x = 28,037,994,189.48/236,729.86
  6. Step 6: Final answer
    x = 118,438.77

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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.