Finding the Fourth Proportional to 128,295.78, 192,420.99 and 34,808.82
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Solution
The fourth proportional to 128,295.78, 192,420.99 and 34,808.82 is: 52,207.08
Step by Step Solution
- Step 1: Write the proportion equation
128,295.78 : 192,420.99 = 34,808.82 : x - Step 2: Convert to fraction form
128,295.78/192,420.99 = 34,808.82/x - Step 3: Cross multiply
128,295.78x = 192,420.99 × 34,808.82 - Step 4: Simplify right side
128,295.78x = 6,697,947,605.13 - Step 5: Solve for x
x = 6,697,947,605.13/128,295.78 - Step 6: Final answer
x = 52,207.08
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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.