Home / 168,564.40-253,138.20-163,315.60

Finding the Fourth Proportional to 168,564.40, 253,138.20 and 163,315.60

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Solution

The fourth proportional to 168,564.40, 253,138.20 and 163,315.60 is: 245,255.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,564.40 : 253,138.20 = 163,315.60 : x
  2. Step 2: Convert to fraction form
    168,564.40/253,138.20 = 163,315.60/x
  3. Step 3: Cross multiply
    168,564.40x = 253,138.20 × 163,315.60
  4. Step 4: Simplify right side
    168,564.40x = 41,341,417,015.92
  5. Step 5: Solve for x
    x = 41,341,417,015.92/168,564.40
  6. Step 6: Final answer
    x = 245,255.92

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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.