Finding the Fourth Proportional to 118,485.98, 163,511.74 and 67,497.95
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Solution
The fourth proportional to 118,485.98, 163,511.74 and 67,497.95 is: 93,147.79
Step by Step Solution
- Step 1: Write the proportion equation
118,485.98 : 163,511.74 = 67,497.95 : x - Step 2: Convert to fraction form
118,485.98/163,511.74 = 67,497.95/x - Step 3: Cross multiply
118,485.98x = 163,511.74 × 67,497.95 - Step 4: Simplify right side
118,485.98x = 11,036,706,913.44 - Step 5: Solve for x
x = 11,036,706,913.44/118,485.98 - Step 6: Final answer
x = 93,147.79
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1.5x scale
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.