Finding the Fourth Proportional to 169,538.99, 233,948.35 and 100,616.56
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Solution
The fourth proportional to 169,538.99, 233,948.35 and 100,616.56 is: 138,841.68
Step by Step Solution
- Step 1: Write the proportion equation
169,538.99 : 233,948.35 = 100,616.56 : x - Step 2: Convert to fraction form
169,538.99/233,948.35 = 100,616.56/x - Step 3: Cross multiply
169,538.99x = 233,948.35 × 100,616.56 - Step 4: Simplify right side
169,538.99x = 23,539,077,943.13 - Step 5: Solve for x
x = 23,539,077,943.13/169,538.99 - Step 6: Final answer
x = 138,841.68
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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.