Home / 199,288.30-299,105.15-104,585.39

Finding the Fourth Proportional to 199,288.30, 299,105.15 and 104,585.39

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Solution

The fourth proportional to 199,288.30, 299,105.15 and 104,585.39 is: 156,968.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,288.30 : 299,105.15 = 104,585.39 : x
  2. Step 2: Convert to fraction form
    199,288.30/299,105.15 = 104,585.39/x
  3. Step 3: Cross multiply
    199,288.30x = 299,105.15 × 104,585.39
  4. Step 4: Simplify right side
    199,288.30x = 31,282,028,988.59
  5. Step 5: Solve for x
    x = 31,282,028,988.59/199,288.30
  6. Step 6: Final answer
    x = 156,968.72

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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.