Finding the Fourth Proportional to 156,791.14, 216,402.09 and 102,248.63
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Solution
The fourth proportional to 156,791.14, 216,402.09 and 102,248.63 is: 141,122.88
Step by Step Solution
- Step 1: Write the proportion equation
156,791.14 : 216,402.09 = 102,248.63 : x - Step 2: Convert to fraction form
156,791.14/216,402.09 = 102,248.63/x - Step 3: Cross multiply
156,791.14x = 216,402.09 × 102,248.63 - Step 4: Simplify right side
156,791.14x = 22,126,817,231.64 - Step 5: Solve for x
x = 22,126,817,231.64/156,791.14 - Step 6: Final answer
x = 141,122.88
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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.