Home / 96,784.60-145,004.10-81,923.80

Finding the Fourth Proportional to 96,784.60, 145,004.10 and 81,923.80

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Solution

The fourth proportional to 96,784.60, 145,004.10 and 81,923.80 is: 122,739.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,784.60 : 145,004.10 = 81,923.80 : x
  2. Step 2: Convert to fraction form
    96,784.60/145,004.10 = 81,923.80/x
  3. Step 3: Cross multiply
    96,784.60x = 145,004.10 × 81,923.80
  4. Step 4: Simplify right side
    96,784.60x = 11,879,286,887.58
  5. Step 5: Solve for x
    x = 11,879,286,887.58/96,784.60
  6. Step 6: Final answer
    x = 122,739.43

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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.