Home / 133,054.25-183,619.31-72,628.45

Finding the Fourth Proportional to 133,054.25, 183,619.31 and 72,628.45

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Solution

The fourth proportional to 133,054.25, 183,619.31 and 72,628.45 is: 100,229.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,054.25 : 183,619.31 = 72,628.45 : x
  2. Step 2: Convert to fraction form
    133,054.25/183,619.31 = 72,628.45/x
  3. Step 3: Cross multiply
    133,054.25x = 183,619.31 × 72,628.45
  4. Step 4: Simplify right side
    133,054.25x = 13,335,985,053.18
  5. Step 5: Solve for x
    x = 13,335,985,053.18/133,054.25
  6. Step 6: Final answer
    x = 100,229.68

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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.