Finding the Fourth Proportional to 159,178.10, 219,661.11 and 87,558.08
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Solution
The fourth proportional to 159,178.10, 219,661.11 and 87,558.08 is: 120,827.58
Step by Step Solution
- Step 1: Write the proportion equation
159,178.10 : 219,661.11 = 87,558.08 : x - Step 2: Convert to fraction form
159,178.10/219,661.11 = 87,558.08/x - Step 3: Cross multiply
159,178.10x = 219,661.11 × 87,558.08 - Step 4: Simplify right side
159,178.10x = 19,233,103,943.96 - Step 5: Solve for x
x = 19,233,103,943.96/159,178.10 - Step 6: Final answer
x = 120,827.58
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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.