Home / 139,440.51-192,427.38-79,022.67

Finding the Fourth Proportional to 139,440.51, 192,427.38 and 79,022.67

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Solution

The fourth proportional to 139,440.51, 192,427.38 and 79,022.67 is: 109,050.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,440.51 : 192,427.38 = 79,022.67 : x
  2. Step 2: Convert to fraction form
    139,440.51/192,427.38 = 79,022.67/x
  3. Step 3: Cross multiply
    139,440.51x = 192,427.38 × 79,022.67
  4. Step 4: Simplify right side
    139,440.51x = 15,206,125,348.70
  5. Step 5: Solve for x
    x = 15,206,125,348.70/139,440.51
  6. Step 6: Final answer
    x = 109,050.99

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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.