Finding the Fourth Proportional to 137,779.50, 206,476.71 and 74,463.12
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Solution
The fourth proportional to 137,779.50, 206,476.71 and 74,463.12 is: 111,590.62
Step by Step Solution
- Step 1: Write the proportion equation
137,779.50 : 206,476.71 = 74,463.12 : x - Step 2: Convert to fraction form
137,779.50/206,476.71 = 74,463.12/x - Step 3: Cross multiply
137,779.50x = 206,476.71 × 74,463.12 - Step 4: Simplify right side
137,779.50x = 15,374,900,033.94 - Step 5: Solve for x
x = 15,374,900,033.94/137,779.50 - Step 6: Final answer
x = 111,590.62
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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.