Finding the Fourth Proportional to 157,927.95, 217,940.60 and 89,951.26
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Solution
The fourth proportional to 157,927.95, 217,940.60 and 89,951.26 is: 124,132.75
Step by Step Solution
- Step 1: Write the proportion equation
157,927.95 : 217,940.60 = 89,951.26 : x - Step 2: Convert to fraction form
157,927.95/217,940.60 = 89,951.26/x - Step 3: Cross multiply
157,927.95x = 217,940.60 × 89,951.26 - Step 4: Simplify right side
157,927.95x = 19,604,030,509.23 - Step 5: Solve for x
x = 19,604,030,509.23/157,927.95 - Step 6: Final answer
x = 124,132.75
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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.