Finding the Fourth Proportional to 157,302.28, 235,929.07 and 86,259.98
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Solution
The fourth proportional to 157,302.28, 235,929.07 and 86,259.98 is: 129,376.62
Step by Step Solution
- Step 1: Write the proportion equation
157,302.28 : 235,929.07 = 86,259.98 : x - Step 2: Convert to fraction form
157,302.28/235,929.07 = 86,259.98/x - Step 3: Cross multiply
157,302.28x = 235,929.07 × 86,259.98 - Step 4: Simplify right side
157,302.28x = 20,351,236,963.30 - Step 5: Solve for x
x = 20,351,236,963.30/157,302.28 - Step 6: Final answer
x = 129,376.62
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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.