Finding the Fourth Proportional to 170,713.80, 256,070.70 and 91,981.80
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Solution
The fourth proportional to 170,713.80, 256,070.70 and 91,981.80 is: 137,972.70
Step by Step Solution
- Step 1: Write the proportion equation
170,713.80 : 256,070.70 = 91,981.80 : x - Step 2: Convert to fraction form
170,713.80/256,070.70 = 91,981.80/x - Step 3: Cross multiply
170,713.80x = 256,070.70 × 91,981.80 - Step 4: Simplify right side
170,713.80x = 23,553,843,913.26 - Step 5: Solve for x
x = 23,553,843,913.26/170,713.80 - Step 6: Final answer
x = 137,972.70
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1.5x scale
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.