Finding the Fourth Proportional to 117,135.18, 161,646.84 and 63,420.84
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Solution
The fourth proportional to 117,135.18, 161,646.84 and 63,420.84 is: 87,520.92
Step by Step Solution
- Step 1: Write the proportion equation
117,135.18 : 161,646.84 = 63,420.84 : x - Step 2: Convert to fraction form
117,135.18/161,646.84 = 63,420.84/x - Step 3: Cross multiply
117,135.18x = 161,646.84 × 63,420.84 - Step 4: Simplify right side
117,135.18x = 10,251,778,376.15 - Step 5: Solve for x
x = 10,251,778,376.15/117,135.18 - Step 6: Final answer
x = 87,520.92
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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.