Home / 189,965.19-262,095.51-109,390.62

Finding the Fourth Proportional to 189,965.19, 262,095.51 and 109,390.62

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Solution

The fourth proportional to 189,965.19, 262,095.51 and 109,390.62 is: 150,926.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,965.19 : 262,095.51 = 109,390.62 : x
  2. Step 2: Convert to fraction form
    189,965.19/262,095.51 = 109,390.62/x
  3. Step 3: Cross multiply
    189,965.19x = 262,095.51 × 109,390.62
  4. Step 4: Simplify right side
    189,965.19x = 28,670,790,338.12
  5. Step 5: Solve for x
    x = 28,670,790,338.12/189,965.19
  6. Step 6: Final answer
    x = 150,926.55

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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.