Home / 189,890.43-262,038.20-103,832.32

Finding the Fourth Proportional to 189,890.43, 262,038.20 and 103,832.32

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Solution

The fourth proportional to 189,890.43, 262,038.20 and 103,832.32 is: 143,282.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,890.43 : 262,038.20 = 103,832.32 : x
  2. Step 2: Convert to fraction form
    189,890.43/262,038.20 = 103,832.32/x
  3. Step 3: Cross multiply
    189,890.43x = 262,038.20 × 103,832.32
  4. Step 4: Simplify right side
    189,890.43x = 27,208,034,914.41
  5. Step 5: Solve for x
    x = 27,208,034,914.41/189,890.43
  6. Step 6: Final answer
    x = 143,282.81

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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.