Finding the Fourth Proportional to 125,989.83, 173,853.35 and 77,583.99
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Solution
The fourth proportional to 125,989.83, 173,853.35 and 77,583.99 is: 107,058.14
Step by Step Solution
- Step 1: Write the proportion equation
125,989.83 : 173,853.35 = 77,583.99 : x - Step 2: Convert to fraction form
125,989.83/173,853.35 = 77,583.99/x - Step 3: Cross multiply
125,989.83x = 173,853.35 × 77,583.99 - Step 4: Simplify right side
125,989.83x = 13,488,236,904.63 - Step 5: Solve for x
x = 13,488,236,904.63/125,989.83 - Step 6: Final answer
x = 107,058.14
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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.