Finding the Fourth Proportional to 114,931.26, 158,515.26 and 74,657.99
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Solution
The fourth proportional to 114,931.26, 158,515.26 and 74,657.99 is: 102,969.64
Step by Step Solution
- Step 1: Write the proportion equation
114,931.26 : 158,515.26 = 74,657.99 : x - Step 2: Convert to fraction form
114,931.26/158,515.26 = 74,657.99/x - Step 3: Cross multiply
114,931.26x = 158,515.26 × 74,657.99 - Step 4: Simplify right side
114,931.26x = 11,834,430,695.93 - Step 5: Solve for x
x = 11,834,430,695.93/114,931.26 - Step 6: Final answer
x = 102,969.64
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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.