Finding the Fourth Proportional to 147,686.16, 221,518.54 and 57,711.99
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Solution
The fourth proportional to 147,686.16, 221,518.54 and 57,711.99 is: 86,563.80
Step by Step Solution
- Step 1: Write the proportion equation
147,686.16 : 221,518.54 = 57,711.99 : x - Step 2: Convert to fraction form
147,686.16/221,518.54 = 57,711.99/x - Step 3: Cross multiply
147,686.16x = 221,518.54 × 57,711.99 - Step 4: Simplify right side
147,686.16x = 12,784,275,765.29 - Step 5: Solve for x
x = 12,784,275,765.29/147,686.16 - Step 6: Final answer
x = 86,563.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.