Finding the Fourth Proportional to 106,511.99, 147,607.91 and 105,008.63
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Solution
The fourth proportional to 106,511.99, 147,607.91 and 105,008.63 is: 145,524.50
Step by Step Solution
- Step 1: Write the proportion equation
106,511.99 : 147,607.91 = 105,008.63 : x - Step 2: Convert to fraction form
106,511.99/147,607.91 = 105,008.63/x - Step 3: Cross multiply
106,511.99x = 147,607.91 × 105,008.63 - Step 4: Simplify right side
106,511.99x = 15,500,103,143.18 - Step 5: Solve for x
x = 15,500,103,143.18/106,511.99 - Step 6: Final answer
x = 145,524.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.