Home / 189,900.29-262,128.32-109,359.90

Finding the Fourth Proportional to 189,900.29, 262,128.32 and 109,359.90

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Solution

The fourth proportional to 189,900.29, 262,128.32 and 109,359.90 is: 150,954.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,900.29 : 262,128.32 = 109,359.90 : x
  2. Step 2: Convert to fraction form
    189,900.29/262,128.32 = 109,359.90/x
  3. Step 3: Cross multiply
    189,900.29x = 262,128.32 × 109,359.90
  4. Step 4: Simplify right side
    189,900.29x = 28,666,326,862.37
  5. Step 5: Solve for x
    x = 28,666,326,862.37/189,900.29
  6. Step 6: Final answer
    x = 150,954.62

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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.