Finding the Fourth Proportional to 108,201.90, 149,307.68 and 74,239.62
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Solution
The fourth proportional to 108,201.90, 149,307.68 and 74,239.62 is: 102,443.17
Step by Step Solution
- Step 1: Write the proportion equation
108,201.90 : 149,307.68 = 74,239.62 : x - Step 2: Convert to fraction form
108,201.90/149,307.68 = 74,239.62/x - Step 3: Cross multiply
108,201.90x = 149,307.68 × 74,239.62 - Step 4: Simplify right side
108,201.90x = 11,084,545,426.28 - Step 5: Solve for x
x = 11,084,545,426.28/108,201.90 - Step 6: Final answer
x = 102,443.17
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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.