Home / 139,429.27-192,412.02-75,767.08

Finding the Fourth Proportional to 139,429.27, 192,412.02 and 75,767.08

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Solution

The fourth proportional to 139,429.27, 192,412.02 and 75,767.08 is: 104,558.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,429.27 : 192,412.02 = 75,767.08 : x
  2. Step 2: Convert to fraction form
    139,429.27/192,412.02 = 75,767.08/x
  3. Step 3: Cross multiply
    139,429.27x = 192,412.02 × 75,767.08
  4. Step 4: Simplify right side
    139,429.27x = 14,578,496,912.30
  5. Step 5: Solve for x
    x = 14,578,496,912.30/139,429.27
  6. Step 6: Final answer
    x = 104,558.37

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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.