Home / 216,194.95-324,259.16-72,103.31

Finding the Fourth Proportional to 216,194.95, 324,259.16 and 72,103.31

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Solution

The fourth proportional to 216,194.95, 324,259.16 and 72,103.31 is: 108,143.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,194.95 : 324,259.16 = 72,103.31 : x
  2. Step 2: Convert to fraction form
    216,194.95/324,259.16 = 72,103.31/x
  3. Step 3: Cross multiply
    216,194.95x = 324,259.16 × 72,103.31
  4. Step 4: Simplify right side
    216,194.95x = 23,380,157,112.52
  5. Step 5: Solve for x
    x = 23,380,157,112.52/216,194.95
  6. Step 6: Final answer
    x = 108,143.86

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1.5x scale

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.