Finding the Fourth Proportional to 136,095.53, 187,822.34 and 81,649.74
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Solution
The fourth proportional to 136,095.53, 187,822.34 and 81,649.74 is: 112,682.95
Step by Step Solution
- Step 1: Write the proportion equation
136,095.53 : 187,822.34 = 81,649.74 : x - Step 2: Convert to fraction form
136,095.53/187,822.34 = 81,649.74/x - Step 3: Cross multiply
136,095.53x = 187,822.34 × 81,649.74 - Step 4: Simplify right side
136,095.53x = 15,335,645,227.19 - Step 5: Solve for x
x = 15,335,645,227.19/136,095.53 - Step 6: Final answer
x = 112,682.95
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1.5x scale
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.