Finding the Fourth Proportional to 159,183.62, 219,679.18 and 87,569.09
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Solution
The fourth proportional to 159,183.62, 219,679.18 and 87,569.09 is: 120,848.52
Step by Step Solution
- Step 1: Write the proportion equation
159,183.62 : 219,679.18 = 87,569.09 : x - Step 2: Convert to fraction form
159,183.62/219,679.18 = 87,569.09/x - Step 3: Cross multiply
159,183.62x = 219,679.18 × 87,569.09 - Step 4: Simplify right side
159,183.62x = 19,237,104,567.23 - Step 5: Solve for x
x = 19,237,104,567.23/159,183.62 - Step 6: Final answer
x = 120,848.52
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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.