Finding the Fourth Proportional to 139,237.49, 192,147.93 and 75,575.30
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Solution
The fourth proportional to 139,237.49, 192,147.93 and 75,575.30 is: 104,294.02
Step by Step Solution
- Step 1: Write the proportion equation
139,237.49 : 192,147.93 = 75,575.30 : x - Step 2: Convert to fraction form
139,237.49/192,147.93 = 75,575.30/x - Step 3: Cross multiply
139,237.49x = 192,147.93 × 75,575.30 - Step 4: Simplify right side
139,237.49x = 14,521,637,454.13 - Step 5: Solve for x
x = 14,521,637,454.13/139,237.49 - Step 6: Final answer
x = 104,294.02
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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.