Home / 139,374.18-192,336.89-82,015.74

Finding the Fourth Proportional to 139,374.18, 192,336.89 and 82,015.74

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Solution

The fourth proportional to 139,374.18, 192,336.89 and 82,015.74 is: 113,182.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,374.18 : 192,336.89 = 82,015.74 : x
  2. Step 2: Convert to fraction form
    139,374.18/192,336.89 = 82,015.74/x
  3. Step 3: Cross multiply
    139,374.18x = 192,336.89 × 82,015.74
  4. Step 4: Simplify right side
    139,374.18x = 15,774,651,952.57
  5. Step 5: Solve for x
    x = 15,774,651,952.57/139,374.18
  6. Step 6: Final answer
    x = 113,182.03

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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.