Finding the Fourth Proportional to 190,539.97, 285,560.80 and 78,088.54
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Solution
The fourth proportional to 190,539.97, 285,560.80 and 78,088.54 is: 117,030.70
Step by Step Solution
- Step 1: Write the proportion equation
190,539.97 : 285,560.80 = 78,088.54 : x - Step 2: Convert to fraction form
190,539.97/285,560.80 = 78,088.54/x - Step 3: Cross multiply
190,539.97x = 285,560.80 × 78,088.54 - Step 4: Simplify right side
190,539.97x = 22,299,025,953.23 - Step 5: Solve for x
x = 22,299,025,953.23/190,539.97 - Step 6: Final answer
x = 117,030.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.