Finding the Fourth Proportional to 163,842.18, 226,139.09 and 107,220.75
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Solution
The fourth proportional to 163,842.18, 226,139.09 and 107,220.75 is: 147,988.77
Step by Step Solution
- Step 1: Write the proportion equation
163,842.18 : 226,139.09 = 107,220.75 : x - Step 2: Convert to fraction form
163,842.18/226,139.09 = 107,220.75/x - Step 3: Cross multiply
163,842.18x = 226,139.09 × 107,220.75 - Step 4: Simplify right side
163,842.18x = 24,246,802,298.01 - Step 5: Solve for x
x = 24,246,802,298.01/163,842.18 - Step 6: Final answer
x = 147,988.77
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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.