Finding the Fourth Proportional to 149,834.13, 206,777.40 and 86,171.99
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Solution
The fourth proportional to 149,834.13, 206,777.40 and 86,171.99 is: 118,920.96
Step by Step Solution
- Step 1: Write the proportion equation
149,834.13 : 206,777.40 = 86,171.99 : x - Step 2: Convert to fraction form
149,834.13/206,777.40 = 86,171.99/x - Step 3: Cross multiply
149,834.13x = 206,777.40 × 86,171.99 - Step 4: Simplify right side
149,834.13x = 17,818,418,580.28 - Step 5: Solve for x
x = 17,818,418,580.28/149,834.13 - Step 6: Final answer
x = 118,920.96
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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.