Finding the Fourth Proportional to 127,791.08, 176,344.50 and 70,430.23
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Solution
The fourth proportional to 127,791.08, 176,344.50 and 70,430.23 is: 97,189.75
Step by Step Solution
- Step 1: Write the proportion equation
127,791.08 : 176,344.50 = 70,430.23 : x - Step 2: Convert to fraction form
127,791.08/176,344.50 = 70,430.23/x - Step 3: Cross multiply
127,791.08x = 176,344.50 × 70,430.23 - Step 4: Simplify right side
127,791.08x = 12,419,983,253.37 - Step 5: Solve for x
x = 12,419,983,253.37/127,791.08 - Step 6: Final answer
x = 97,189.75
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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.