Finding the Fourth Proportional to 124,970.50, 172,459.29 and 68,381.88
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Solution
The fourth proportional to 124,970.50, 172,459.29 and 68,381.88 is: 94,366.99
Step by Step Solution
- Step 1: Write the proportion equation
124,970.50 : 172,459.29 = 68,381.88 : x - Step 2: Convert to fraction form
124,970.50/172,459.29 = 68,381.88/x - Step 3: Cross multiply
124,970.50x = 172,459.29 × 68,381.88 - Step 4: Simplify right side
124,970.50x = 11,793,090,473.67 - Step 5: Solve for x
x = 11,793,090,473.67/124,970.50 - Step 6: Final answer
x = 94,366.99
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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.