Finding the Fourth Proportional to 157,585.99, 217,468.36 and 85,965.99
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Solution
The fourth proportional to 157,585.99, 217,468.36 and 85,965.99 is: 118,632.89
Step by Step Solution
- Step 1: Write the proportion equation
157,585.99 : 217,468.36 = 85,965.99 : x - Step 2: Convert to fraction form
157,585.99/217,468.36 = 85,965.99/x - Step 3: Cross multiply
157,585.99x = 217,468.36 × 85,965.99 - Step 4: Simplify right side
157,585.99x = 18,694,881,343.90 - Step 5: Solve for x
x = 18,694,881,343.90/157,585.99 - Step 6: Final answer
x = 118,632.89
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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.