Home / 139,632.63-192,697.83-75,972.84

Finding the Fourth Proportional to 139,632.63, 192,697.83 and 75,972.84

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Solution

The fourth proportional to 139,632.63, 192,697.83 and 75,972.84 is: 104,845.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,632.63 : 192,697.83 = 75,972.84 : x
  2. Step 2: Convert to fraction form
    139,632.63/192,697.83 = 75,972.84/x
  3. Step 3: Cross multiply
    139,632.63x = 192,697.83 × 75,972.84
  4. Step 4: Simplify right side
    139,632.63x = 14,639,801,406.94
  5. Step 5: Solve for x
    x = 14,639,801,406.94/139,632.63
  6. Step 6: Final answer
    x = 104,845.13

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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.