Home / 168,778.64-253,292.58-80,032.47

Finding the Fourth Proportional to 168,778.64, 253,292.58 and 80,032.47

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Solution

The fourth proportional to 168,778.64, 253,292.58 and 80,032.47 is: 120,107.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,778.64 : 253,292.58 = 80,032.47 : x
  2. Step 2: Convert to fraction form
    168,778.64/253,292.58 = 80,032.47/x
  3. Step 3: Cross multiply
    168,778.64x = 253,292.58 × 80,032.47
  4. Step 4: Simplify right side
    168,778.64x = 20,271,630,810.07
  5. Step 5: Solve for x
    x = 20,271,630,810.07/168,778.64
  6. Step 6: Final answer
    x = 120,107.80

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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.