Finding the Fourth Proportional to 157,212.07, 216,952.68 and 85,592.09
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Solution
The fourth proportional to 157,212.07, 216,952.68 and 85,592.09 is: 118,117.10
Step by Step Solution
- Step 1: Write the proportion equation
157,212.07 : 216,952.68 = 85,592.09 : x - Step 2: Convert to fraction form
157,212.07/216,952.68 = 85,592.09/x - Step 3: Cross multiply
157,212.07x = 216,952.68 × 85,592.09 - Step 4: Simplify right side
157,212.07x = 18,569,433,312.30 - Step 5: Solve for x
x = 18,569,433,312.30/157,212.07 - Step 6: Final answer
x = 118,117.10
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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.