Finding the Fourth Proportional to 98,690.37, 136,106.64 and 69,953.19
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Solution
The fourth proportional to 98,690.37, 136,106.64 and 69,953.19 is: 96,474.39
Step by Step Solution
- Step 1: Write the proportion equation
98,690.37 : 136,106.64 = 69,953.19 : x - Step 2: Convert to fraction form
98,690.37/136,106.64 = 69,953.19/x - Step 3: Cross multiply
98,690.37x = 136,106.64 × 69,953.19 - Step 4: Simplify right side
98,690.37x = 9,521,093,648.18 - Step 5: Solve for x
x = 9,521,093,648.18/98,690.37 - Step 6: Final answer
x = 96,474.39
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1.5x scale
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.