Finding the Fourth Proportional to 112,553.84, 155,328.36 and 62,253.20
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Solution
The fourth proportional to 112,553.84, 155,328.36 and 62,253.20 is: 85,911.66
Step by Step Solution
- Step 1: Write the proportion equation
112,553.84 : 155,328.36 = 62,253.20 : x - Step 2: Convert to fraction form
112,553.84/155,328.36 = 62,253.20/x - Step 3: Cross multiply
112,553.84x = 155,328.36 × 62,253.20 - Step 4: Simplify right side
112,553.84x = 9,669,687,460.75 - Step 5: Solve for x
x = 9,669,687,460.75/112,553.84 - Step 6: Final answer
x = 85,911.66
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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.