Home / 128,986.02-193,429.22-50,089.59

Finding the Fourth Proportional to 128,986.02, 193,429.22 and 50,089.59

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Solution

The fourth proportional to 128,986.02, 193,429.22 and 50,089.59 is: 75,115.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,986.02 : 193,429.22 = 50,089.59 : x
  2. Step 2: Convert to fraction form
    128,986.02/193,429.22 = 50,089.59/x
  3. Step 3: Cross multiply
    128,986.02x = 193,429.22 × 50,089.59
  4. Step 4: Simplify right side
    128,986.02x = 9,688,790,073.37
  5. Step 5: Solve for x
    x = 9,688,790,073.37/128,986.02
  6. Step 6: Final answer
    x = 75,115.04

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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.