Finding the Fourth Proportional to 98,865.19, 136,439.94 and 60,629.14
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Solution
The fourth proportional to 98,865.19, 136,439.94 and 60,629.14 is: 83,671.88
Step by Step Solution
- Step 1: Write the proportion equation
98,865.19 : 136,439.94 = 60,629.14 : x - Step 2: Convert to fraction form
98,865.19/136,439.94 = 60,629.14/x - Step 3: Cross multiply
98,865.19x = 136,439.94 × 60,629.14 - Step 4: Simplify right side
98,865.19x = 8,272,236,223.85 - Step 5: Solve for x
x = 8,272,236,223.85/98,865.19 - Step 6: Final answer
x = 83,671.88
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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.