Finding the Fourth Proportional to 151,970.58, 209,718.99 and 84,902.58
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Solution
The fourth proportional to 151,970.58, 209,718.99 and 84,902.58 is: 117,165.33
Step by Step Solution
- Step 1: Write the proportion equation
151,970.58 : 209,718.99 = 84,902.58 : x - Step 2: Convert to fraction form
151,970.58/209,718.99 = 84,902.58/x - Step 3: Cross multiply
151,970.58x = 209,718.99 × 84,902.58 - Step 4: Simplify right side
151,970.58x = 17,805,683,325.99 - Step 5: Solve for x
x = 17,805,683,325.99/151,970.58 - Step 6: Final answer
x = 117,165.33
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1.5x scale
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.