Finding the Fourth Proportional to 157,361.60, 217,159.98 and 93,702.08
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Solution
The fourth proportional to 157,361.60, 217,159.98 and 93,702.08 is: 129,309.45
Step by Step Solution
- Step 1: Write the proportion equation
157,361.60 : 217,159.98 = 93,702.08 : x - Step 2: Convert to fraction form
157,361.60/217,159.98 = 93,702.08/x - Step 3: Cross multiply
157,361.60x = 217,159.98 × 93,702.08 - Step 4: Simplify right side
157,361.60x = 20,348,341,818.76 - Step 5: Solve for x
x = 20,348,341,818.76/157,361.60 - Step 6: Final answer
x = 129,309.45
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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.