Finding the Fourth Proportional to 132,643.48, 198,963.12 and 48,403.08
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Solution
The fourth proportional to 132,643.48, 198,963.12 and 48,403.08 is: 72,603.85
Step by Step Solution
- Step 1: Write the proportion equation
132,643.48 : 198,963.12 = 48,403.08 : x - Step 2: Convert to fraction form
132,643.48/198,963.12 = 48,403.08/x - Step 3: Cross multiply
132,643.48x = 198,963.12 × 48,403.08 - Step 4: Simplify right side
132,643.48x = 9,630,427,814.41 - Step 5: Solve for x
x = 9,630,427,814.41/132,643.48 - Step 6: Final answer
x = 72,603.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.