Finding the Fourth Proportional to 118,773.68, 163,909.80 and 65,057.84
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Solution
The fourth proportional to 118,773.68, 163,909.80 and 65,057.84 is: 89,780.98
Step by Step Solution
- Step 1: Write the proportion equation
118,773.68 : 163,909.80 = 65,057.84 : x - Step 2: Convert to fraction form
118,773.68/163,909.80 = 65,057.84/x - Step 3: Cross multiply
118,773.68x = 163,909.80 × 65,057.84 - Step 4: Simplify right side
118,773.68x = 10,663,617,542.83 - Step 5: Solve for x
x = 10,663,617,542.83/118,773.68 - Step 6: Final answer
x = 89,780.98
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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.