Finding the Fourth Proportional to 148,669.41, 205,163.70 and 84,137.47
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Solution
The fourth proportional to 148,669.41, 205,163.70 and 84,137.47 is: 116,109.67
Step by Step Solution
- Step 1: Write the proportion equation
148,669.41 : 205,163.70 = 84,137.47 : x - Step 2: Convert to fraction form
148,669.41/205,163.70 = 84,137.47/x - Step 3: Cross multiply
148,669.41x = 205,163.70 × 84,137.47 - Step 4: Simplify right side
148,669.41x = 17,261,955,068.05 - Step 5: Solve for x
x = 17,261,955,068.05/148,669.41 - Step 6: Final answer
x = 116,109.67
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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.