Finding the Fourth Proportional to 157,772.40, 217,602.84 and 101,188.08
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Solution
The fourth proportional to 157,772.40, 217,602.84 and 101,188.08 is: 139,560.62
Step by Step Solution
- Step 1: Write the proportion equation
157,772.40 : 217,602.84 = 101,188.08 : x - Step 2: Convert to fraction form
157,772.40/217,602.84 = 101,188.08/x - Step 3: Cross multiply
157,772.40x = 217,602.84 × 101,188.08 - Step 4: Simplify right side
157,772.40x = 22,018,813,582.15 - Step 5: Solve for x
x = 22,018,813,582.15/157,772.40 - Step 6: Final answer
x = 139,560.62
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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.