Finding the Fourth Proportional to 115,326.63, 159,153.54 and 64,338.99
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Solution
The fourth proportional to 115,326.63, 159,153.54 and 64,338.99 is: 88,789.36
Step by Step Solution
- Step 1: Write the proportion equation
115,326.63 : 159,153.54 = 64,338.99 : x - Step 2: Convert to fraction form
115,326.63/159,153.54 = 64,338.99/x - Step 3: Cross multiply
115,326.63x = 159,153.54 × 64,338.99 - Step 4: Simplify right side
115,326.63x = 10,239,778,018.52 - Step 5: Solve for x
x = 10,239,778,018.52/115,326.63 - Step 6: Final answer
x = 88,789.36
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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.