Finding the Fourth Proportional to 101,353.68, 139,833.84 and 65,588.88
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Solution
The fourth proportional to 101,353.68, 139,833.84 and 65,588.88 is: 90,490.50
Step by Step Solution
- Step 1: Write the proportion equation
101,353.68 : 139,833.84 = 65,588.88 : x - Step 2: Convert to fraction form
101,353.68/139,833.84 = 65,588.88/x - Step 3: Cross multiply
101,353.68x = 139,833.84 × 65,588.88 - Step 4: Simplify right side
101,353.68x = 9,171,544,951.70 - Step 5: Solve for x
x = 9,171,544,951.70/101,353.68 - Step 6: Final answer
x = 90,490.50
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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.