Finding the Fourth Proportional to 139,673.04, 192,753.17 and 79,246.23
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Solution
The fourth proportional to 139,673.04, 192,753.17 and 79,246.23 is: 109,362.28
Step by Step Solution
- Step 1: Write the proportion equation
139,673.04 : 192,753.17 = 79,246.23 : x - Step 2: Convert to fraction form
139,673.04/192,753.17 = 79,246.23/x - Step 3: Cross multiply
139,673.04x = 192,753.17 × 79,246.23 - Step 4: Simplify right side
139,673.04x = 15,274,961,646.82 - Step 5: Solve for x
x = 15,274,961,646.82/139,673.04 - Step 6: Final answer
x = 109,362.28
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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.