Finding the Fourth Proportional to 149,981.54, 207,026.64 and 86,344.70
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Solution
The fourth proportional to 149,981.54, 207,026.64 and 86,344.70 is: 119,185.69
Step by Step Solution
- Step 1: Write the proportion equation
149,981.54 : 207,026.64 = 86,344.70 : x - Step 2: Convert to fraction form
149,981.54/207,026.64 = 86,344.70/x - Step 3: Cross multiply
149,981.54x = 207,026.64 × 86,344.70 - Step 4: Simplify right side
149,981.54x = 17,875,652,087.67 - Step 5: Solve for x
x = 17,875,652,087.67/149,981.54 - Step 6: Final answer
x = 119,185.69
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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.