Finding the Fourth Proportional to 157,977.10, 218,012.58 and 94,351.60
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Solution
The fourth proportional to 157,977.10, 218,012.58 and 94,351.60 is: 130,207.71
Step by Step Solution
- Step 1: Write the proportion equation
157,977.10 : 218,012.58 = 94,351.60 : x - Step 2: Convert to fraction form
157,977.10/218,012.58 = 94,351.60/x - Step 3: Cross multiply
157,977.10x = 218,012.58 × 94,351.60 - Step 4: Simplify right side
157,977.10x = 20,569,835,743.13 - Step 5: Solve for x
x = 20,569,835,743.13/157,977.10 - Step 6: Final answer
x = 130,207.71
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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.