Finding the Fourth Proportional to 112,582.22, 155,295.78 and 74,342.12
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Solution
The fourth proportional to 112,582.22, 155,295.78 and 74,342.12 is: 102,547.43
Step by Step Solution
- Step 1: Write the proportion equation
112,582.22 : 155,295.78 = 74,342.12 : x - Step 2: Convert to fraction form
112,582.22/155,295.78 = 74,342.12/x - Step 3: Cross multiply
112,582.22x = 155,295.78 × 74,342.12 - Step 4: Simplify right side
112,582.22x = 11,545,017,512.25 - Step 5: Solve for x
x = 11,545,017,512.25/112,582.22 - Step 6: Final answer
x = 102,547.43
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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.