Finding the Fourth Proportional to 148,784.08, 205,326.76 and 81,716.08
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Solution
The fourth proportional to 148,784.08, 205,326.76 and 81,716.08 is: 112,770.79
Step by Step Solution
- Step 1: Write the proportion equation
148,784.08 : 205,326.76 = 81,716.08 : x - Step 2: Convert to fraction form
148,784.08/205,326.76 = 81,716.08/x - Step 3: Cross multiply
148,784.08x = 205,326.76 × 81,716.08 - Step 4: Simplify right side
148,784.08x = 16,778,497,946.30 - Step 5: Solve for x
x = 16,778,497,946.30/148,784.08 - Step 6: Final answer
x = 112,770.79
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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.