Home / 139,623.33-192,678.08-75,959.67

Finding the Fourth Proportional to 139,623.33, 192,678.08 and 75,959.67

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Solution

The fourth proportional to 139,623.33, 192,678.08 and 75,959.67 is: 104,823.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,623.33 : 192,678.08 = 75,959.67 : x
  2. Step 2: Convert to fraction form
    139,623.33/192,678.08 = 75,959.67/x
  3. Step 3: Cross multiply
    139,623.33x = 192,678.08 × 75,959.67
  4. Step 4: Simplify right side
    139,623.33x = 14,635,762,993.24
  5. Step 5: Solve for x
    x = 14,635,762,993.24/139,623.33
  6. Step 6: Final answer
    x = 104,823.19

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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.