Finding the Fourth Proportional to 121,263.19, 167,343.09 and 70,305.50
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Solution
The fourth proportional to 121,263.19, 167,343.09 and 70,305.50 is: 97,021.52
Step by Step Solution
- Step 1: Write the proportion equation
121,263.19 : 167,343.09 = 70,305.50 : x - Step 2: Convert to fraction form
121,263.19/167,343.09 = 70,305.50/x - Step 3: Cross multiply
121,263.19x = 167,343.09 × 70,305.50 - Step 4: Simplify right side
121,263.19x = 11,765,139,614.00 - Step 5: Solve for x
x = 11,765,139,614.00/121,263.19 - Step 6: Final answer
x = 97,021.52
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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.