Finding the Fourth Proportional to 137,331.48, 204,967.58 and 128,363.48
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Solution
The fourth proportional to 137,331.48, 204,967.58 and 128,363.48 is: 191,582.82
Step by Step Solution
- Step 1: Write the proportion equation
137,331.48 : 204,967.58 = 128,363.48 : x - Step 2: Convert to fraction form
137,331.48/204,967.58 = 128,363.48/x - Step 3: Cross multiply
137,331.48x = 204,967.58 × 128,363.48 - Step 4: Simplify right side
137,331.48x = 26,310,351,855.98 - Step 5: Solve for x
x = 26,310,351,855.98/137,331.48 - Step 6: Final answer
x = 191,582.82
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.