Finding the Fourth Proportional to 107,855.99, 148,841.75 and 62,560.79
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Solution
The fourth proportional to 107,855.99, 148,841.75 and 62,560.79 is: 86,334.17
Step by Step Solution
- Step 1: Write the proportion equation
107,855.99 : 148,841.75 = 62,560.79 : x - Step 2: Convert to fraction form
107,855.99/148,841.75 = 62,560.79/x - Step 3: Cross multiply
107,855.99x = 148,841.75 × 62,560.79 - Step 4: Simplify right side
107,855.99x = 9,311,656,407.97 - Step 5: Solve for x
x = 9,311,656,407.97/107,855.99 - Step 6: Final answer
x = 86,334.17
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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.