Home / 189,672.04-261,744.36-103,629.18

Finding the Fourth Proportional to 189,672.04, 261,744.36 and 103,629.18

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Solution

The fourth proportional to 189,672.04, 261,744.36 and 103,629.18 is: 143,006.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,672.04 : 261,744.36 = 103,629.18 : x
  2. Step 2: Convert to fraction form
    189,672.04/261,744.36 = 103,629.18/x
  3. Step 3: Cross multiply
    189,672.04x = 261,744.36 × 103,629.18
  4. Step 4: Simplify right side
    189,672.04x = 27,124,352,087.70
  5. Step 5: Solve for x
    x = 27,124,352,087.70/189,672.04
  6. Step 6: Final answer
    x = 143,006.59

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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.