Finding the Fourth Proportional to 154,538.08, 213,244.80 and 86,545.60
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Solution
The fourth proportional to 154,538.08, 213,244.80 and 86,545.60 is: 119,422.99
Step by Step Solution
- Step 1: Write the proportion equation
154,538.08 : 213,244.80 = 86,545.60 : x - Step 2: Convert to fraction form
154,538.08/213,244.80 = 86,545.60/x - Step 3: Cross multiply
154,538.08x = 213,244.80 × 86,545.60 - Step 4: Simplify right side
154,538.08x = 18,455,399,162.88 - Step 5: Solve for x
x = 18,455,399,162.88/154,538.08 - Step 6: Final answer
x = 119,422.99
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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.