Finding the Fourth Proportional to 157,204.48, 216,792.48 and 121,337.68
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Solution
The fourth proportional to 157,204.48, 216,792.48 and 121,337.68 is: 167,330.45
Step by Step Solution
- Step 1: Write the proportion equation
157,204.48 : 216,792.48 = 121,337.68 : x - Step 2: Convert to fraction form
157,204.48/216,792.48 = 121,337.68/x - Step 3: Cross multiply
157,204.48x = 216,792.48 × 121,337.68 - Step 4: Simplify right side
157,204.48x = 26,305,096,564.65 - Step 5: Solve for x
x = 26,305,096,564.65/157,204.48 - Step 6: Final answer
x = 167,330.45
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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.