Home / 165,736.40-248,604.60-72,424.40

Finding the Fourth Proportional to 165,736.40, 248,604.60 and 72,424.40

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Solution

The fourth proportional to 165,736.40, 248,604.60 and 72,424.40 is: 108,636.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,736.40 : 248,604.60 = 72,424.40 : x
  2. Step 2: Convert to fraction form
    165,736.40/248,604.60 = 72,424.40/x
  3. Step 3: Cross multiply
    165,736.40x = 248,604.60 × 72,424.40
  4. Step 4: Simplify right side
    165,736.40x = 18,005,038,992.24
  5. Step 5: Solve for x
    x = 18,005,038,992.24/165,736.40
  6. Step 6: Final answer
    x = 108,636.60

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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.