Finding the Fourth Proportional to 99,905.40, 137,889.14 and 59,598.99
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Solution
The fourth proportional to 99,905.40, 137,889.14 and 59,598.99 is: 82,258.35
Step by Step Solution
- Step 1: Write the proportion equation
99,905.40 : 137,889.14 = 59,598.99 : x - Step 2: Convert to fraction form
99,905.40/137,889.14 = 59,598.99/x - Step 3: Cross multiply
99,905.40x = 137,889.14 × 59,598.99 - Step 4: Simplify right side
99,905.40x = 8,218,053,177.97 - Step 5: Solve for x
x = 8,218,053,177.97/99,905.40 - Step 6: Final answer
x = 82,258.35
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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.