Finding the Fourth Proportional to 156,892.23, 216,511.58 and 85,272.08
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Solution
The fourth proportional to 156,892.23, 216,511.58 and 85,272.08 is: 117,675.63
Step by Step Solution
- Step 1: Write the proportion equation
156,892.23 : 216,511.58 = 85,272.08 : x - Step 2: Convert to fraction form
156,892.23/216,511.58 = 85,272.08/x - Step 3: Cross multiply
156,892.23x = 216,511.58 × 85,272.08 - Step 4: Simplify right side
156,892.23x = 18,462,392,275.11 - Step 5: Solve for x
x = 18,462,392,275.11/156,892.23 - Step 6: Final answer
x = 117,675.63
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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.