Finding the Fourth Proportional to 107,961.36, 148,946.54 and 62,613.92
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Solution
The fourth proportional to 107,961.36, 148,946.54 and 62,613.92 is: 86,383.92
Step by Step Solution
- Step 1: Write the proportion equation
107,961.36 : 148,946.54 = 62,613.92 : x - Step 2: Convert to fraction form
107,961.36/148,946.54 = 62,613.92/x - Step 3: Cross multiply
107,961.36x = 148,946.54 × 62,613.92 - Step 4: Simplify right side
107,961.36x = 9,326,125,682.03 - Step 5: Solve for x
x = 9,326,125,682.03/107,961.36 - Step 6: Final answer
x = 86,383.92
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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.