Finding the Fourth Proportional to 136,037.13, 187,822.70 and 121,652.20
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Solution
The fourth proportional to 136,037.13, 187,822.70 and 121,652.20 is: 167,961.83
Step by Step Solution
- Step 1: Write the proportion equation
136,037.13 : 187,822.70 = 121,652.20 : x - Step 2: Convert to fraction form
136,037.13/187,822.70 = 121,652.20/x - Step 3: Cross multiply
136,037.13x = 187,822.70 × 121,652.20 - Step 4: Simplify right side
136,037.13x = 22,849,044,664.94 - Step 5: Solve for x
x = 22,849,044,664.94/136,037.13 - Step 6: Final answer
x = 167,961.83
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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.