Finding the Fourth Proportional to 118,307.22, 177,489.08 and 39,422.13
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Solution
The fourth proportional to 118,307.22, 177,489.08 and 39,422.13 is: 59,142.61
Step by Step Solution
- Step 1: Write the proportion equation
118,307.22 : 177,489.08 = 39,422.13 : x - Step 2: Convert to fraction form
118,307.22/177,489.08 = 39,422.13/x - Step 3: Cross multiply
118,307.22x = 177,489.08 × 39,422.13 - Step 4: Simplify right side
118,307.22x = 6,996,997,388.23 - Step 5: Solve for x
x = 6,996,997,388.23/118,307.22 - Step 6: Final answer
x = 59,142.61
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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.