Home / 196,921.60-295,382.40-72,246.40

Finding the Fourth Proportional to 196,921.60, 295,382.40 and 72,246.40

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Solution

The fourth proportional to 196,921.60, 295,382.40 and 72,246.40 is: 108,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,921.60 : 295,382.40 = 72,246.40 : x
  2. Step 2: Convert to fraction form
    196,921.60/295,382.40 = 72,246.40/x
  3. Step 3: Cross multiply
    196,921.60x = 295,382.40 × 72,246.40
  4. Step 4: Simplify right side
    196,921.60x = 21,340,315,023.36
  5. Step 5: Solve for x
    x = 21,340,315,023.36/196,921.60
  6. Step 6: Final answer
    x = 108,369.60

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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.