Home / 133,208.25-183,825.04-72,777.36

Finding the Fourth Proportional to 133,208.25, 183,825.04 and 72,777.36

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Solution

The fourth proportional to 133,208.25, 183,825.04 and 72,777.36 is: 100,431.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,208.25 : 183,825.04 = 72,777.36 : x
  2. Step 2: Convert to fraction form
    133,208.25/183,825.04 = 72,777.36/x
  3. Step 3: Cross multiply
    133,208.25x = 183,825.04 × 72,777.36
  4. Step 4: Simplify right side
    133,208.25x = 13,378,301,113.09
  5. Step 5: Solve for x
    x = 13,378,301,113.09/133,208.25
  6. Step 6: Final answer
    x = 100,431.48

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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.