Finding the Fourth Proportional to 97,686.20, 146,529.30 and 86,799.80
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Solution
The fourth proportional to 97,686.20, 146,529.30 and 86,799.80 is: 130,199.70
Step by Step Solution
- Step 1: Write the proportion equation
97,686.20 : 146,529.30 = 86,799.80 : x - Step 2: Convert to fraction form
97,686.20/146,529.30 = 86,799.80/x - Step 3: Cross multiply
97,686.20x = 146,529.30 × 86,799.80 - Step 4: Simplify right side
97,686.20x = 12,718,713,934.14 - Step 5: Solve for x
x = 12,718,713,934.14/97,686.20 - Step 6: Final answer
x = 130,199.70
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1.5x scale
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.