Finding the Fourth Proportional to 118,536.93, 163,580.96 and 64,821.99
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Solution
The fourth proportional to 118,536.93, 163,580.96 and 64,821.99 is: 89,454.34
Step by Step Solution
- Step 1: Write the proportion equation
118,536.93 : 163,580.96 = 64,821.99 : x - Step 2: Convert to fraction form
118,536.93/163,580.96 = 64,821.99/x - Step 3: Cross multiply
118,536.93x = 163,580.96 × 64,821.99 - Step 4: Simplify right side
118,536.93x = 10,603,643,029.20 - Step 5: Solve for x
x = 10,603,643,029.20/118,536.93 - Step 6: Final answer
x = 89,454.34
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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.