Finding the Fourth Proportional to 159,000.68, 219,424.74 and 87,387.50
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Solution
The fourth proportional to 159,000.68, 219,424.74 and 87,387.50 is: 120,596.84
Step by Step Solution
- Step 1: Write the proportion equation
159,000.68 : 219,424.74 = 87,387.50 : x - Step 2: Convert to fraction form
159,000.68/219,424.74 = 87,387.50/x - Step 3: Cross multiply
159,000.68x = 219,424.74 × 87,387.50 - Step 4: Simplify right side
159,000.68x = 19,174,979,466.75 - Step 5: Solve for x
x = 19,174,979,466.75/159,000.68 - Step 6: Final answer
x = 120,596.84
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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.