Finding the Fourth Proportional to 149,129.13, 205,801.64 and 84,602.69
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Solution
The fourth proportional to 149,129.13, 205,801.64 and 84,602.69 is: 116,753.66
Step by Step Solution
- Step 1: Write the proportion equation
149,129.13 : 205,801.64 = 84,602.69 : x - Step 2: Convert to fraction form
149,129.13/205,801.64 = 84,602.69/x - Step 3: Cross multiply
149,129.13x = 205,801.64 × 84,602.69 - Step 4: Simplify right side
149,129.13x = 17,411,372,350.41 - Step 5: Solve for x
x = 17,411,372,350.41/149,129.13 - Step 6: Final answer
x = 116,753.66
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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.