Finding the Fourth Proportional to 163,511.20, 245,274.90 and 84,779.20
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Solution
The fourth proportional to 163,511.20, 245,274.90 and 84,779.20 is: 127,173.00
Step by Step Solution
- Step 1: Write the proportion equation
163,511.20 : 245,274.90 = 84,779.20 : x - Step 2: Convert to fraction form
163,511.20/245,274.90 = 84,779.20/x - Step 3: Cross multiply
163,511.20x = 245,274.90 × 84,779.20 - Step 4: Simplify right side
163,511.20x = 20,794,209,802.08 - Step 5: Solve for x
x = 20,794,209,802.08/163,511.20 - Step 6: Final answer
x = 127,173.00
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.