Finding the Fourth Proportional to 83,465.13, 125,202.26 and 21,136.17
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Solution
The fourth proportional to 83,465.13, 125,202.26 and 21,136.17 is: 31,705.41
Step by Step Solution
- Step 1: Write the proportion equation
83,465.13 : 125,202.26 = 21,136.17 : x - Step 2: Convert to fraction form
83,465.13/125,202.26 = 21,136.17/x - Step 3: Cross multiply
83,465.13x = 125,202.26 × 21,136.17 - Step 4: Simplify right side
83,465.13x = 2,646,296,146.06 - Step 5: Solve for x
x = 2,646,296,146.06/83,465.13 - Step 6: Final answer
x = 31,705.41
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.