Finding the Fourth Proportional to 133,223.70, 183,971.48 and 85,560.09
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Solution
The fourth proportional to 133,223.70, 183,971.48 and 85,560.09 is: 118,151.77
Step by Step Solution
- Step 1: Write the proportion equation
133,223.70 : 183,971.48 = 85,560.09 : x - Step 2: Convert to fraction form
133,223.70/183,971.48 = 85,560.09/x - Step 3: Cross multiply
133,223.70x = 183,971.48 × 85,560.09 - Step 4: Simplify right side
133,223.70x = 15,740,616,386.23 - Step 5: Solve for x
x = 15,740,616,386.23/133,223.70 - Step 6: Final answer
x = 118,151.77
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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.