Home / 139,735.08-192,833.25-76,072.74

Finding the Fourth Proportional to 139,735.08, 192,833.25 and 76,072.74

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Solution

The fourth proportional to 139,735.08, 192,833.25 and 76,072.74 is: 104,979.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,735.08 : 192,833.25 = 76,072.74 : x
  2. Step 2: Convert to fraction form
    139,735.08/192,833.25 = 76,072.74/x
  3. Step 3: Cross multiply
    139,735.08x = 192,833.25 × 76,072.74
  4. Step 4: Simplify right side
    139,735.08x = 14,669,353,690.61
  5. Step 5: Solve for x
    x = 14,669,353,690.61/139,735.08
  6. Step 6: Final answer
    x = 104,979.75

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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.