Home / 140,438.20-193,807.02-83,854.52

Finding the Fourth Proportional to 140,438.20, 193,807.02 and 83,854.52

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Solution

The fourth proportional to 140,438.20, 193,807.02 and 83,854.52 is: 115,720.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,438.20 : 193,807.02 = 83,854.52 : x
  2. Step 2: Convert to fraction form
    140,438.20/193,807.02 = 83,854.52/x
  3. Step 3: Cross multiply
    140,438.20x = 193,807.02 × 83,854.52
  4. Step 4: Simplify right side
    140,438.20x = 16,251,594,634.73
  5. Step 5: Solve for x
    x = 16,251,594,634.73/140,438.20
  6. Step 6: Final answer
    x = 115,720.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.