Finding the Fourth Proportional to 153,993.74, 212,497.52 and 86,001.26
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Solution
The fourth proportional to 153,993.74, 212,497.52 and 86,001.26 is: 118,674.00
Step by Step Solution
- Step 1: Write the proportion equation
153,993.74 : 212,497.52 = 86,001.26 : x - Step 2: Convert to fraction form
153,993.74/212,497.52 = 86,001.26/x - Step 3: Cross multiply
153,993.74x = 212,497.52 × 86,001.26 - Step 4: Simplify right side
153,993.74x = 18,275,052,974.38 - Step 5: Solve for x
x = 18,275,052,974.38/153,993.74 - Step 6: Final answer
x = 118,674.00
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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.