Finding the Fourth Proportional to 118,965.15, 164,085.84 and 101,031.75
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Solution
The fourth proportional to 118,965.15, 164,085.84 and 101,031.75 is: 139,350.72
Step by Step Solution
- Step 1: Write the proportion equation
118,965.15 : 164,085.84 = 101,031.75 : x - Step 2: Convert to fraction form
118,965.15/164,085.84 = 101,031.75/x - Step 3: Cross multiply
118,965.15x = 164,085.84 × 101,031.75 - Step 4: Simplify right side
118,965.15x = 16,577,879,565.42 - Step 5: Solve for x
x = 16,577,879,565.42/118,965.15 - Step 6: Final answer
x = 139,350.72
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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.