Finding the Fourth Proportional to 106,866.92, 147,367.14 and 71,062.76
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Solution
The fourth proportional to 106,866.92, 147,367.14 and 71,062.76 is: 97,993.99
Step by Step Solution
- Step 1: Write the proportion equation
106,866.92 : 147,367.14 = 71,062.76 : x - Step 2: Convert to fraction form
106,866.92/147,367.14 = 71,062.76/x - Step 3: Cross multiply
106,866.92x = 147,367.14 × 71,062.76 - Step 4: Simplify right side
106,866.92x = 10,472,315,701.71 - Step 5: Solve for x
x = 10,472,315,701.71/106,866.92 - Step 6: Final answer
x = 97,993.99
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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.