Finding the Fourth Proportional to 112,828.48, 169,244.80 and 42,740.80
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Solution
The fourth proportional to 112,828.48, 169,244.80 and 42,740.80 is: 64,111.99
Step by Step Solution
- Step 1: Write the proportion equation
112,828.48 : 169,244.80 = 42,740.80 : x - Step 2: Convert to fraction form
112,828.48/169,244.80 = 42,740.80/x - Step 3: Cross multiply
112,828.48x = 169,244.80 × 42,740.80 - Step 4: Simplify right side
112,828.48x = 7,233,658,147.84 - Step 5: Solve for x
x = 7,233,658,147.84/112,828.48 - Step 6: Final answer
x = 64,111.99
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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.