Home / 199,128.60-298,779.30-100,632.60

Finding the Fourth Proportional to 199,128.60, 298,779.30 and 100,632.60

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Solution

The fourth proportional to 199,128.60, 298,779.30 and 100,632.60 is: 150,992.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,128.60 : 298,779.30 = 100,632.60 : x
  2. Step 2: Convert to fraction form
    199,128.60/298,779.30 = 100,632.60/x
  3. Step 3: Cross multiply
    199,128.60x = 298,779.30 × 100,632.60
  4. Step 4: Simplify right side
    199,128.60x = 30,066,937,785.18
  5. Step 5: Solve for x
    x = 30,066,937,785.18/199,128.60
  6. Step 6: Final answer
    x = 150,992.56

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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.