Home / 189,511.81-261,525.55-104,628.27

Finding the Fourth Proportional to 189,511.81, 261,525.55 and 104,628.27

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Solution

The fourth proportional to 189,511.81, 261,525.55 and 104,628.27 is: 144,386.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,511.81 : 261,525.55 = 104,628.27 : x
  2. Step 2: Convert to fraction form
    189,511.81/261,525.55 = 104,628.27/x
  3. Step 3: Cross multiply
    189,511.81x = 261,525.55 × 104,628.27
  4. Step 4: Simplify right side
    189,511.81x = 27,362,965,857.30
  5. Step 5: Solve for x
    x = 27,362,965,857.30/189,511.81
  6. Step 6: Final answer
    x = 144,386.60

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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.