Finding the Fourth Proportional to 118,478.74, 163,474.32 and 68,177.74
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Solution
The fourth proportional to 118,478.74, 163,474.32 and 68,177.74 is: 94,070.12
Step by Step Solution
- Step 1: Write the proportion equation
118,478.74 : 163,474.32 = 68,177.74 : x - Step 2: Convert to fraction form
118,478.74/163,474.32 = 68,177.74/x - Step 3: Cross multiply
118,478.74x = 163,474.32 × 68,177.74 - Step 4: Simplify right side
118,478.74x = 11,145,309,685.64 - Step 5: Solve for x
x = 11,145,309,685.64/118,478.74 - Step 6: Final answer
x = 94,070.12
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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.