Finding the Fourth Proportional to 101,987.97, 153,009.63 and 30,907.74
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Solution
The fourth proportional to 101,987.97, 153,009.63 and 30,907.74 is: 46,369.99
Step by Step Solution
- Step 1: Write the proportion equation
101,987.97 : 153,009.63 = 30,907.74 : x - Step 2: Convert to fraction form
101,987.97/153,009.63 = 30,907.74/x - Step 3: Cross multiply
101,987.97x = 153,009.63 × 30,907.74 - Step 4: Simplify right side
101,987.97x = 4,729,181,231.23 - Step 5: Solve for x
x = 4,729,181,231.23/101,987.97 - Step 6: Final answer
x = 46,369.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.