Home / 189,141.84-261,016.56-104,257.08

Finding the Fourth Proportional to 189,141.84, 261,016.56 and 104,257.08

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Solution

The fourth proportional to 189,141.84, 261,016.56 and 104,257.08 is: 143,875.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,141.84 : 261,016.56 = 104,257.08 : x
  2. Step 2: Convert to fraction form
    189,141.84/261,016.56 = 104,257.08/x
  3. Step 3: Cross multiply
    189,141.84x = 261,016.56 × 104,257.08
  4. Step 4: Simplify right side
    189,141.84x = 27,212,824,377.24
  5. Step 5: Solve for x
    x = 27,212,824,377.24/189,141.84
  6. Step 6: Final answer
    x = 143,875.22

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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.