Finding the Fourth Proportional to 153,774.49, 212,208.93 and 85,791.48
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Solution
The fourth proportional to 153,774.49, 212,208.93 and 85,791.48 is: 118,392.31
Step by Step Solution
- Step 1: Write the proportion equation
153,774.49 : 212,208.93 = 85,791.48 : x - Step 2: Convert to fraction form
153,774.49/212,208.93 = 85,791.48/x - Step 3: Cross multiply
153,774.49x = 212,208.93 × 85,791.48 - Step 4: Simplify right side
153,774.49x = 18,205,716,683.91 - Step 5: Solve for x
x = 18,205,716,683.91/153,774.49 - Step 6: Final answer
x = 118,392.31
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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.