Home / 139,402.20-192,374.52-75,739.44

Finding the Fourth Proportional to 139,402.20, 192,374.52 and 75,739.44

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Solution

The fourth proportional to 139,402.20, 192,374.52 and 75,739.44 is: 104,520.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,402.20 : 192,374.52 = 75,739.44 : x
  2. Step 2: Convert to fraction form
    139,402.20/192,374.52 = 75,739.44/x
  3. Step 3: Cross multiply
    139,402.20x = 192,374.52 × 75,739.44
  4. Step 4: Simplify right side
    139,402.20x = 14,570,338,415.07
  5. Step 5: Solve for x
    x = 14,570,338,415.07/139,402.20
  6. Step 6: Final answer
    x = 104,520.15

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1.5x scale

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.