Finding the Fourth Proportional to 134,703.99, 185,887.45 and 74,274.61
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Solution
The fourth proportional to 134,703.99, 185,887.45 and 74,274.61 is: 102,496.73
Step by Step Solution
- Step 1: Write the proportion equation
134,703.99 : 185,887.45 = 74,274.61 : x - Step 2: Convert to fraction form
134,703.99/185,887.45 = 74,274.61/x - Step 3: Cross multiply
134,703.99x = 185,887.45 × 74,274.61 - Step 4: Simplify right side
134,703.99x = 13,806,718,143.22 - Step 5: Solve for x
x = 13,806,718,143.22/134,703.99 - Step 6: Final answer
x = 102,496.73
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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.