Finding the Fourth Proportional to 107,838.18, 161,779.14 and 37,766.70
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Solution
The fourth proportional to 107,838.18, 161,779.14 and 37,766.70 is: 56,657.71
Step by Step Solution
- Step 1: Write the proportion equation
107,838.18 : 161,779.14 = 37,766.70 : x - Step 2: Convert to fraction form
107,838.18/161,779.14 = 37,766.70/x - Step 3: Cross multiply
107,838.18x = 161,779.14 × 37,766.70 - Step 4: Simplify right side
107,838.18x = 6,109,864,246.64 - Step 5: Solve for x
x = 6,109,864,246.64/107,838.18 - Step 6: Final answer
x = 56,657.71
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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.