Finding the Fourth Proportional to 117,062.44, 161,420.70 and 94,377.40
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Solution
The fourth proportional to 117,062.44, 161,420.70 and 94,377.40 is: 130,139.66
Step by Step Solution
- Step 1: Write the proportion equation
117,062.44 : 161,420.70 = 94,377.40 : x - Step 2: Convert to fraction form
117,062.44/161,420.70 = 94,377.40/x - Step 3: Cross multiply
117,062.44x = 161,420.70 × 94,377.40 - Step 4: Simplify right side
117,062.44x = 15,234,465,972.18 - Step 5: Solve for x
x = 15,234,465,972.18/117,062.44 - Step 6: Final answer
x = 130,139.66
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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.