Finding the Fourth Proportional to 157,812.10, 236,718.15 and 98,829.70
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Solution
The fourth proportional to 157,812.10, 236,718.15 and 98,829.70 is: 148,244.55
Step by Step Solution
- Step 1: Write the proportion equation
157,812.10 : 236,718.15 = 98,829.70 : x - Step 2: Convert to fraction form
157,812.10/236,718.15 = 98,829.70/x - Step 3: Cross multiply
157,812.10x = 236,718.15 × 98,829.70 - Step 4: Simplify right side
157,812.10x = 23,394,783,749.06 - Step 5: Solve for x
x = 23,394,783,749.06/157,812.10 - Step 6: Final answer
x = 148,244.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.