Finding the Fourth Proportional to 163,876.60, 245,891.44 and 84,947.76
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Solution
The fourth proportional to 163,876.60, 245,891.44 and 84,947.76 is: 127,461.32
Step by Step Solution
- Step 1: Write the proportion equation
163,876.60 : 245,891.44 = 84,947.76 : x - Step 2: Convert to fraction form
163,876.60/245,891.44 = 84,947.76/x - Step 3: Cross multiply
163,876.60x = 245,891.44 × 84,947.76 - Step 4: Simplify right side
163,876.60x = 20,887,927,031.17 - Step 5: Solve for x
x = 20,887,927,031.17/163,876.60 - Step 6: Final answer
x = 127,461.32
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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.