Finding the Fourth Proportional to 101,282.19, 139,691.75 and 60,953.91
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Solution
The fourth proportional to 101,282.19, 139,691.75 and 60,953.91 is: 84,069.65
Step by Step Solution
- Step 1: Write the proportion equation
101,282.19 : 139,691.75 = 60,953.91 : x - Step 2: Convert to fraction form
101,282.19/139,691.75 = 60,953.91/x - Step 3: Cross multiply
101,282.19x = 139,691.75 × 60,953.91 - Step 4: Simplify right side
101,282.19x = 8,514,758,357.24 - Step 5: Solve for x
x = 8,514,758,357.24/101,282.19 - Step 6: Final answer
x = 84,069.65
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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.