Finding the Fourth Proportional to 102,253.14, 141,108.21 and 56,930.13
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Solution
The fourth proportional to 102,253.14, 141,108.21 and 56,930.13 is: 78,562.95
Step by Step Solution
- Step 1: Write the proportion equation
102,253.14 : 141,108.21 = 56,930.13 : x - Step 2: Convert to fraction form
102,253.14/141,108.21 = 56,930.13/x - Step 3: Cross multiply
102,253.14x = 141,108.21 × 56,930.13 - Step 4: Simplify right side
102,253.14x = 8,033,308,739.37 - Step 5: Solve for x
x = 8,033,308,739.37/102,253.14 - Step 6: Final answer
x = 78,562.95
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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.