Home / 189,378.06-284,055.94-71,039.49

Finding the Fourth Proportional to 189,378.06, 284,055.94 and 71,039.49

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Solution

The fourth proportional to 189,378.06, 284,055.94 and 71,039.49 is: 106,555.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,378.06 : 284,055.94 = 71,039.49 : x
  2. Step 2: Convert to fraction form
    189,378.06/284,055.94 = 71,039.49/x
  3. Step 3: Cross multiply
    189,378.06x = 284,055.94 × 71,039.49
  4. Step 4: Simplify right side
    189,378.06x = 20,179,189,109.07
  5. Step 5: Solve for x
    x = 20,179,189,109.07/189,378.06
  6. Step 6: Final answer
    x = 106,555.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.