Home / 199,185.89-298,512.74-72,707.22

Finding the Fourth Proportional to 199,185.89, 298,512.74 and 72,707.22

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Solution

The fourth proportional to 199,185.89, 298,512.74 and 72,707.22 is: 108,963.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,185.89 : 298,512.74 = 72,707.22 : x
  2. Step 2: Convert to fraction form
    199,185.89/298,512.74 = 72,707.22/x
  3. Step 3: Cross multiply
    199,185.89x = 298,512.74 × 72,707.22
  4. Step 4: Simplify right side
    199,185.89x = 21,704,031,641.75
  5. Step 5: Solve for x
    x = 21,704,031,641.75/199,185.89
  6. Step 6: Final answer
    x = 108,963.70

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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.