Finding the Fourth Proportional to 153,843.84, 212,304.04 and 85,860.07
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Solution
The fourth proportional to 153,843.84, 212,304.04 and 85,860.07 is: 118,486.64
Step by Step Solution
- Step 1: Write the proportion equation
153,843.84 : 212,304.04 = 85,860.07 : x - Step 2: Convert to fraction form
153,843.84/212,304.04 = 85,860.07/x - Step 3: Cross multiply
153,843.84x = 212,304.04 × 85,860.07 - Step 4: Simplify right side
153,843.84x = 18,228,438,990.27 - Step 5: Solve for x
x = 18,228,438,990.27/153,843.84 - Step 6: Final answer
x = 118,486.64
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1.5x scale
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.