Home / 132,721.82-183,153.36-72,293.54

Finding the Fourth Proportional to 132,721.82, 183,153.36 and 72,293.54

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Solution

The fourth proportional to 132,721.82, 183,153.36 and 72,293.54 is: 99,763.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,721.82 : 183,153.36 = 72,293.54 : x
  2. Step 2: Convert to fraction form
    132,721.82/183,153.36 = 72,293.54/x
  3. Step 3: Cross multiply
    132,721.82x = 183,153.36 × 72,293.54
  4. Step 4: Simplify right side
    132,721.82x = 13,240,804,757.29
  5. Step 5: Solve for x
    x = 13,240,804,757.29/132,721.82
  6. Step 6: Final answer
    x = 99,763.59

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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.