Home / 189,869.92-262,019.81-107,077.32

Finding the Fourth Proportional to 189,869.92, 262,019.81 and 107,077.32

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Solution

The fourth proportional to 189,869.92, 262,019.81 and 107,077.32 is: 147,766.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,869.92 : 262,019.81 = 107,077.32 : x
  2. Step 2: Convert to fraction form
    189,869.92/262,019.81 = 107,077.32/x
  3. Step 3: Cross multiply
    189,869.92x = 262,019.81 × 107,077.32
  4. Step 4: Simplify right side
    189,869.92x = 28,056,379,309.40
  5. Step 5: Solve for x
    x = 28,056,379,309.40/189,869.92
  6. Step 6: Final answer
    x = 147,766.32

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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.