Home / 199,315.20-298,389.60-132,830.40

Finding the Fourth Proportional to 199,315.20, 298,389.60 and 132,830.40

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Solution

The fourth proportional to 199,315.20, 298,389.60 and 132,830.40 is: 198,856.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,315.20 : 298,389.60 = 132,830.40 : x
  2. Step 2: Convert to fraction form
    199,315.20/298,389.60 = 132,830.40/x
  3. Step 3: Cross multiply
    199,315.20x = 298,389.60 × 132,830.40
  4. Step 4: Simplify right side
    199,315.20x = 39,635,209,923.84
  5. Step 5: Solve for x
    x = 39,635,209,923.84/199,315.20
  6. Step 6: Final answer
    x = 198,856.94

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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.