Finding the Fourth Proportional to 107,781.93, 148,738.95 and 62,486.19
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Solution
The fourth proportional to 107,781.93, 148,738.95 and 62,486.19 is: 86,230.88
Step by Step Solution
- Step 1: Write the proportion equation
107,781.93 : 148,738.95 = 62,486.19 : x - Step 2: Convert to fraction form
107,781.93/148,738.95 = 62,486.19/x - Step 3: Cross multiply
107,781.93x = 148,738.95 × 62,486.19 - Step 4: Simplify right side
107,781.93x = 9,294,130,290.10 - Step 5: Solve for x
x = 9,294,130,290.10/107,781.93 - Step 6: Final answer
x = 86,230.88
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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.