Finding the Fourth Proportional to 157,642.28, 217,545.48 and 86,022.08
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Solution
The fourth proportional to 157,642.28, 217,545.48 and 86,022.08 is: 118,710.00
Step by Step Solution
- Step 1: Write the proportion equation
157,642.28 : 217,545.48 = 86,022.08 : x - Step 2: Convert to fraction form
157,642.28/217,545.48 = 86,022.08/x - Step 3: Cross multiply
157,642.28x = 217,545.48 × 86,022.08 - Step 4: Simplify right side
157,642.28x = 18,713,714,684.20 - Step 5: Solve for x
x = 18,713,714,684.20/157,642.28 - Step 6: Final answer
x = 118,710.00
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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.