Finding the Fourth Proportional to 107,966.13, 148,953.09 and 62,618.68
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Solution
The fourth proportional to 107,966.13, 148,953.09 and 62,618.68 is: 86,390.48
Step by Step Solution
- Step 1: Write the proportion equation
107,966.13 : 148,953.09 = 62,618.68 : x - Step 2: Convert to fraction form
107,966.13/148,953.09 = 62,618.68/x - Step 3: Cross multiply
107,966.13x = 148,953.09 × 62,618.68 - Step 4: Simplify right side
107,966.13x = 9,327,245,877.72 - Step 5: Solve for x
x = 9,327,245,877.72/107,966.13 - Step 6: Final answer
x = 86,390.48
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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.