Finding the Fourth Proportional to 130,485.40, 180,063.84 and 73,897.18
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Solution
The fourth proportional to 130,485.40, 180,063.84 and 73,897.18 is: 101,974.70
Step by Step Solution
- Step 1: Write the proportion equation
130,485.40 : 180,063.84 = 73,897.18 : x - Step 2: Convert to fraction form
130,485.40/180,063.84 = 73,897.18/x - Step 3: Cross multiply
130,485.40x = 180,063.84 × 73,897.18 - Step 4: Simplify right side
130,485.40x = 13,306,209,995.97 - Step 5: Solve for x
x = 13,306,209,995.97/130,485.40 - Step 6: Final answer
x = 101,974.70
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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.