Finding the Fourth Proportional to 122,239.17, 168,657.53 and 70,543.17
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Solution
The fourth proportional to 122,239.17, 168,657.53 and 70,543.17 is: 97,330.80
Step by Step Solution
- Step 1: Write the proportion equation
122,239.17 : 168,657.53 = 70,543.17 : x - Step 2: Convert to fraction form
122,239.17/168,657.53 = 70,543.17/x - Step 3: Cross multiply
122,239.17x = 168,657.53 × 70,543.17 - Step 4: Simplify right side
122,239.17x = 11,897,636,457.85 - Step 5: Solve for x
x = 11,897,636,457.85/122,239.17 - Step 6: Final answer
x = 97,330.80
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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.