Home / 168,941.75-253,210.40-78,863.27

Finding the Fourth Proportional to 168,941.75, 253,210.40 and 78,863.27

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Solution

The fourth proportional to 168,941.75, 253,210.40 and 78,863.27 is: 118,200.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,941.75 : 253,210.40 = 78,863.27 : x
  2. Step 2: Convert to fraction form
    168,941.75/253,210.40 = 78,863.27/x
  3. Step 3: Cross multiply
    168,941.75x = 253,210.40 × 78,863.27
  4. Step 4: Simplify right side
    168,941.75x = 19,968,999,747.69
  5. Step 5: Solve for x
    x = 19,968,999,747.69/168,941.75
  6. Step 6: Final answer
    x = 118,200.50

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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.