Home / 139,286.02-192,216.09-75,624.34

Finding the Fourth Proportional to 139,286.02, 192,216.09 and 75,624.34

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Solution

The fourth proportional to 139,286.02, 192,216.09 and 75,624.34 is: 104,362.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,286.02 : 192,216.09 = 75,624.34 : x
  2. Step 2: Convert to fraction form
    139,286.02/192,216.09 = 75,624.34/x
  3. Step 3: Cross multiply
    139,286.02x = 192,216.09 × 75,624.34
  4. Step 4: Simplify right side
    139,286.02x = 14,536,214,943.63
  5. Step 5: Solve for x
    x = 14,536,214,943.63/139,286.02
  6. Step 6: Final answer
    x = 104,362.34

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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.