Finding the Fourth Proportional to 115,939.24, 159,973.02 and 70,586.98
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Solution
The fourth proportional to 115,939.24, 159,973.02 and 70,586.98 is: 97,395.95
Step by Step Solution
- Step 1: Write the proportion equation
115,939.24 : 159,973.02 = 70,586.98 : x - Step 2: Convert to fraction form
115,939.24/159,973.02 = 70,586.98/x - Step 3: Cross multiply
115,939.24x = 159,973.02 × 70,586.98 - Step 4: Simplify right side
115,939.24x = 11,292,012,363.28 - Step 5: Solve for x
x = 11,292,012,363.28/115,939.24 - Step 6: Final answer
x = 97,395.95
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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.