Finding the Fourth Proportional to 157,378.19, 236,068.92 and 125,987.81
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Solution
The fourth proportional to 157,378.19, 236,068.92 and 125,987.81 is: 188,983.02
Step by Step Solution
- Step 1: Write the proportion equation
157,378.19 : 236,068.92 = 125,987.81 : x - Step 2: Convert to fraction form
157,378.19/236,068.92 = 125,987.81/x - Step 3: Cross multiply
157,378.19x = 236,068.92 × 125,987.81 - Step 4: Simplify right side
157,378.19x = 29,741,805,059.52 - Step 5: Solve for x
x = 29,741,805,059.52/157,378.19 - Step 6: Final answer
x = 188,983.02
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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.