Finding the Fourth Proportional to 112,649.10, 155,395.62 and 69,652.68
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Solution
The fourth proportional to 112,649.10, 155,395.62 and 69,652.68 is: 96,083.51
Step by Step Solution
- Step 1: Write the proportion equation
112,649.10 : 155,395.62 = 69,652.68 : x - Step 2: Convert to fraction form
112,649.10/155,395.62 = 69,652.68/x - Step 3: Cross multiply
112,649.10x = 155,395.62 × 69,652.68 - Step 4: Simplify right side
112,649.10x = 10,823,721,393.26 - Step 5: Solve for x
x = 10,823,721,393.26/112,649.10 - Step 6: Final answer
x = 96,083.51
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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.