Home / 189,237.09-261,135.26-108,607.86

Finding the Fourth Proportional to 189,237.09, 261,135.26 and 108,607.86

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Solution

The fourth proportional to 189,237.09, 261,135.26 and 108,607.86 is: 149,872.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,237.09 : 261,135.26 = 108,607.86 : x
  2. Step 2: Convert to fraction form
    189,237.09/261,135.26 = 108,607.86/x
  3. Step 3: Cross multiply
    189,237.09x = 261,135.26 × 108,607.86
  4. Step 4: Simplify right side
    189,237.09x = 28,361,341,216.10
  5. Step 5: Solve for x
    x = 28,361,341,216.10/189,237.09
  6. Step 6: Final answer
    x = 149,872.00

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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.