Finding the Fourth Proportional to 101,047.70, 139,458.84 and 84,022.66
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Solution
The fourth proportional to 101,047.70, 139,458.84 and 84,022.66 is: 115,962.09
Step by Step Solution
- Step 1: Write the proportion equation
101,047.70 : 139,458.84 = 84,022.66 : x - Step 2: Convert to fraction form
101,047.70/139,458.84 = 84,022.66/x - Step 3: Cross multiply
101,047.70x = 139,458.84 × 84,022.66 - Step 4: Simplify right side
101,047.70x = 11,717,702,697.31 - Step 5: Solve for x
x = 11,717,702,697.31/101,047.70 - Step 6: Final answer
x = 115,962.09
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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.