Finding the Fourth Proportional to 139,590.68, 192,669.36 and 79,196.68
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Solution
The fourth proportional to 139,590.68, 192,669.36 and 79,196.68 is: 109,310.83
Step by Step Solution
- Step 1: Write the proportion equation
139,590.68 : 192,669.36 = 79,196.68 : x - Step 2: Convert to fraction form
139,590.68/192,669.36 = 79,196.68/x - Step 3: Cross multiply
139,590.68x = 192,669.36 × 79,196.68 - Step 4: Simplify right side
139,590.68x = 15,258,772,871.06 - Step 5: Solve for x
x = 15,258,772,871.06/139,590.68 - Step 6: Final answer
x = 109,310.83
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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.