Finding the Fourth Proportional to 118,133.68, 163,053.50 and 91,235.20
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Solution
The fourth proportional to 118,133.68, 163,053.50 and 91,235.20 is: 125,926.99
Step by Step Solution
- Step 1: Write the proportion equation
118,133.68 : 163,053.50 = 91,235.20 : x - Step 2: Convert to fraction form
118,133.68/163,053.50 = 91,235.20/x - Step 3: Cross multiply
118,133.68x = 163,053.50 × 91,235.20 - Step 4: Simplify right side
118,133.68x = 14,876,218,683.20 - Step 5: Solve for x
x = 14,876,218,683.20/118,133.68 - Step 6: Final answer
x = 125,926.99
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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.