Finding the Fourth Proportional to 159,866.19, 220,614.30 and 88,246.19
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Solution
The fourth proportional to 159,866.19, 220,614.30 and 88,246.19 is: 121,779.17
Step by Step Solution
- Step 1: Write the proportion equation
159,866.19 : 220,614.30 = 88,246.19 : x - Step 2: Convert to fraction form
159,866.19/220,614.30 = 88,246.19/x - Step 3: Cross multiply
159,866.19x = 220,614.30 × 88,246.19 - Step 4: Simplify right side
159,866.19x = 19,468,371,986.05 - Step 5: Solve for x
x = 19,468,371,986.05/159,866.19 - Step 6: Final answer
x = 121,779.17
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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.