Finding the Fourth Proportional to 159,642.34, 220,289.58 and 88,018.12
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Solution
The fourth proportional to 159,642.34, 220,289.58 and 88,018.12 is: 121,455.72
Step by Step Solution
- Step 1: Write the proportion equation
159,642.34 : 220,289.58 = 88,018.12 : x - Step 2: Convert to fraction form
159,642.34/220,289.58 = 88,018.12/x - Step 3: Cross multiply
159,642.34x = 220,289.58 × 88,018.12 - Step 4: Simplify right side
159,642.34x = 19,389,474,687.19 - Step 5: Solve for x
x = 19,389,474,687.19/159,642.34 - Step 6: Final answer
x = 121,455.72
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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.