Finding the Fourth Proportional to 135,249.93, 186,643.29 and 74,815.83
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Solution
The fourth proportional to 135,249.93, 186,643.29 and 74,815.83 is: 103,244.95
Step by Step Solution
- Step 1: Write the proportion equation
135,249.93 : 186,643.29 = 74,815.83 : x - Step 2: Convert to fraction form
135,249.93/186,643.29 = 74,815.83/x - Step 3: Cross multiply
135,249.93x = 186,643.29 × 74,815.83 - Step 4: Simplify right side
135,249.93x = 13,963,872,655.28 - Step 5: Solve for x
x = 13,963,872,655.28/135,249.93 - Step 6: Final answer
x = 103,244.95
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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.