Finding the Fourth Proportional to 101,359.23, 139,879.67 and 67,308.99
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Solution
The fourth proportional to 101,359.23, 139,879.67 and 67,308.99 is: 92,889.01
Step by Step Solution
- Step 1: Write the proportion equation
101,359.23 : 139,879.67 = 67,308.99 : x - Step 2: Convert to fraction form
101,359.23/139,879.67 = 67,308.99/x - Step 3: Cross multiply
101,359.23x = 139,879.67 × 67,308.99 - Step 4: Simplify right side
101,359.23x = 9,415,158,972.69 - Step 5: Solve for x
x = 9,415,158,972.69/101,359.23 - Step 6: Final answer
x = 92,889.01
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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.