Finding the Fourth Proportional to 156,187.71, 215,514.68 and 92,515.23
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Solution
The fourth proportional to 156,187.71, 215,514.68 and 92,515.23 is: 127,656.59
Step by Step Solution
- Step 1: Write the proportion equation
156,187.71 : 215,514.68 = 92,515.23 : x - Step 2: Convert to fraction form
156,187.71/215,514.68 = 92,515.23/x - Step 3: Cross multiply
156,187.71x = 215,514.68 × 92,515.23 - Step 4: Simplify right side
156,187.71x = 19,938,389,726.00 - Step 5: Solve for x
x = 19,938,389,726.00/156,187.71 - Step 6: Final answer
x = 127,656.59
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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.