Finding the Fourth Proportional to 103,702.08, 143,119.62 and 63,442.66
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Solution
The fourth proportional to 103,702.08, 143,119.62 and 63,442.66 is: 87,557.45
Step by Step Solution
- Step 1: Write the proportion equation
103,702.08 : 143,119.62 = 63,442.66 : x - Step 2: Convert to fraction form
103,702.08/143,119.62 = 63,442.66/x - Step 3: Cross multiply
103,702.08x = 143,119.62 × 63,442.66 - Step 4: Simplify right side
103,702.08x = 9,079,889,390.99 - Step 5: Solve for x
x = 9,079,889,390.99/103,702.08 - Step 6: Final answer
x = 87,557.45
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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.