Finding the Fourth Proportional to 106,664.67, 147,117.44 and 74,400.95
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Solution
The fourth proportional to 106,664.67, 147,117.44 and 74,400.95 is: 102,617.64
Step by Step Solution
- Step 1: Write the proportion equation
106,664.67 : 147,117.44 = 74,400.95 : x - Step 2: Convert to fraction form
106,664.67/147,117.44 = 74,400.95/x - Step 3: Cross multiply
106,664.67x = 147,117.44 × 74,400.95 - Step 4: Simplify right side
106,664.67x = 10,945,676,925.56 - Step 5: Solve for x
x = 10,945,676,925.56/106,664.67 - Step 6: Final answer
x = 102,617.64
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1.5x scale
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.