Finding the Fourth Proportional to 115,258.14, 158,966.80 and 102,350.99
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Solution
The fourth proportional to 115,258.14, 158,966.80 and 102,350.99 is: 141,164.95
Step by Step Solution
- Step 1: Write the proportion equation
115,258.14 : 158,966.80 = 102,350.99 : x - Step 2: Convert to fraction form
115,258.14/158,966.80 = 102,350.99/x - Step 3: Cross multiply
115,258.14x = 158,966.80 × 102,350.99 - Step 4: Simplify right side
115,258.14x = 16,270,409,498.67 - Step 5: Solve for x
x = 16,270,409,498.67/115,258.14 - Step 6: Final answer
x = 141,164.95
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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.