Finding the Fourth Proportional to 119,553.77, 164,985.27 and 65,838.99
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Solution
The fourth proportional to 119,553.77, 164,985.27 and 65,838.99 is: 90,858.39
Step by Step Solution
- Step 1: Write the proportion equation
119,553.77 : 164,985.27 = 65,838.99 : x - Step 2: Convert to fraction form
119,553.77/164,985.27 = 65,838.99/x - Step 3: Cross multiply
119,553.77x = 164,985.27 × 65,838.99 - Step 4: Simplify right side
119,553.77x = 10,862,463,541.68 - Step 5: Solve for x
x = 10,862,463,541.68/119,553.77 - Step 6: Final answer
x = 90,858.39
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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.