Finding the Fourth Proportional to 157,846.36, 217,842.98 and 86,237.14
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Solution
The fourth proportional to 157,846.36, 217,842.98 and 86,237.14 is: 119,015.45
Step by Step Solution
- Step 1: Write the proportion equation
157,846.36 : 217,842.98 = 86,237.14 : x - Step 2: Convert to fraction form
157,846.36/217,842.98 = 86,237.14/x - Step 3: Cross multiply
157,846.36x = 217,842.98 × 86,237.14 - Step 4: Simplify right side
157,846.36x = 18,786,155,564.28 - Step 5: Solve for x
x = 18,786,155,564.28/157,846.36 - Step 6: Final answer
x = 119,015.45
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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.