Finding the Fourth Proportional to 157,138.68, 235,396.98 and 137,439.48
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Solution
The fourth proportional to 157,138.68, 235,396.98 and 137,439.48 is: 205,887.17
Step by Step Solution
- Step 1: Write the proportion equation
157,138.68 : 235,396.98 = 137,439.48 : x - Step 2: Convert to fraction form
157,138.68/235,396.98 = 137,439.48/x - Step 3: Cross multiply
157,138.68x = 235,396.98 × 137,439.48 - Step 4: Simplify right side
157,138.68x = 32,352,838,524.77 - Step 5: Solve for x
x = 32,352,838,524.77/157,138.68 - Step 6: Final answer
x = 205,887.17
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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.