Finding the Fourth Proportional to 101,658.17, 140,284.23 and 56,338.09
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Solution
The fourth proportional to 101,658.17, 140,284.23 and 56,338.09 is: 77,744.32
Step by Step Solution
- Step 1: Write the proportion equation
101,658.17 : 140,284.23 = 56,338.09 : x - Step 2: Convert to fraction form
101,658.17/140,284.23 = 56,338.09/x - Step 3: Cross multiply
101,658.17x = 140,284.23 × 56,338.09 - Step 4: Simplify right side
101,658.17x = 7,903,345,293.63 - Step 5: Solve for x
x = 7,903,345,293.63/101,658.17 - Step 6: Final answer
x = 77,744.32
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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.