Home / 189,235.59-261,133.19-108,606.36

Finding the Fourth Proportional to 189,235.59, 261,133.19 and 108,606.36

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Solution

The fourth proportional to 189,235.59, 261,133.19 and 108,606.36 is: 149,869.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,235.59 : 261,133.19 = 108,606.36 : x
  2. Step 2: Convert to fraction form
    189,235.59/261,133.19 = 108,606.36/x
  3. Step 3: Cross multiply
    189,235.59x = 261,133.19 × 108,606.36
  4. Step 4: Simplify right side
    189,235.59x = 28,360,724,698.06
  5. Step 5: Solve for x
    x = 28,360,724,698.06/189,235.59
  6. Step 6: Final answer
    x = 149,869.93

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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.