Finding the Fourth Proportional to 168,811.98, 232,951.08 and 92,315.82
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Solution
The fourth proportional to 168,811.98, 232,951.08 and 92,315.82 is: 127,390.66
Step by Step Solution
- Step 1: Write the proportion equation
168,811.98 : 232,951.08 = 92,315.82 : x - Step 2: Convert to fraction form
168,811.98/232,951.08 = 92,315.82/x - Step 3: Cross multiply
168,811.98x = 232,951.08 × 92,315.82 - Step 4: Simplify right side
168,811.98x = 21,505,069,970.09 - Step 5: Solve for x
x = 21,505,069,970.09/168,811.98 - Step 6: Final answer
x = 127,390.66
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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.