Home / 189,235.83-261,133.53-108,606.61

Finding the Fourth Proportional to 189,235.83, 261,133.53 and 108,606.61

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Solution

The fourth proportional to 189,235.83, 261,133.53 and 108,606.61 is: 149,870.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,235.83 : 261,133.53 = 108,606.61 : x
  2. Step 2: Convert to fraction form
    189,235.83/261,133.53 = 108,606.61/x
  3. Step 3: Cross multiply
    189,235.83x = 261,133.53 × 108,606.61
  4. Step 4: Simplify right side
    189,235.83x = 28,360,827,450.63
  5. Step 5: Solve for x
    x = 28,360,827,450.63/189,235.83
  6. Step 6: Final answer
    x = 149,870.28

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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.