Finding the Fourth Proportional to 134,685.49, 185,887.91 and 81,024.75
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Solution
The fourth proportional to 134,685.49, 185,887.91 and 81,024.75 is: 111,827.35
Step by Step Solution
- Step 1: Write the proportion equation
134,685.49 : 185,887.91 = 81,024.75 : x - Step 2: Convert to fraction form
134,685.49/185,887.91 = 81,024.75/x - Step 3: Cross multiply
134,685.49x = 185,887.91 × 81,024.75 - Step 4: Simplify right side
134,685.49x = 15,061,521,435.77 - Step 5: Solve for x
x = 15,061,521,435.77/134,685.49 - Step 6: Final answer
x = 111,827.35
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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.