Finding the Fourth Proportional to 136,001.97, 187,683.53 and 74,747.50
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Solution
The fourth proportional to 136,001.97, 187,683.53 and 74,747.50 is: 103,151.99
Step by Step Solution
- Step 1: Write the proportion equation
136,001.97 : 187,683.53 = 74,747.50 : x - Step 2: Convert to fraction form
136,001.97/187,683.53 = 74,747.50/x - Step 3: Cross multiply
136,001.97x = 187,683.53 × 74,747.50 - Step 4: Simplify right side
136,001.97x = 14,028,873,815.73 - Step 5: Solve for x
x = 14,028,873,815.73/136,001.97 - Step 6: Final answer
x = 103,151.99
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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.