Finding the Fourth Proportional to 118,690.88, 178,031.68 and 29,943.28
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Solution
The fourth proportional to 118,690.88, 178,031.68 and 29,943.28 is: 44,913.75
Step by Step Solution
- Step 1: Write the proportion equation
118,690.88 : 178,031.68 = 29,943.28 : x - Step 2: Convert to fraction form
118,690.88/178,031.68 = 29,943.28/x - Step 3: Cross multiply
118,690.88x = 178,031.68 × 29,943.28 - Step 4: Simplify right side
118,690.88x = 5,330,852,443.11 - Step 5: Solve for x
x = 5,330,852,443.11/118,690.88 - Step 6: Final answer
x = 44,913.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.