Finding the Fourth Proportional to 102,219.99, 141,065.18 and 56,898.46
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Solution
The fourth proportional to 102,219.99, 141,065.18 and 56,898.46 is: 78,520.76
Step by Step Solution
- Step 1: Write the proportion equation
102,219.99 : 141,065.18 = 56,898.46 : x - Step 2: Convert to fraction form
102,219.99/141,065.18 = 56,898.46/x - Step 3: Cross multiply
102,219.99x = 141,065.18 × 56,898.46 - Step 4: Simplify right side
102,219.99x = 8,026,391,217.13 - Step 5: Solve for x
x = 8,026,391,217.13/102,219.99 - Step 6: Final answer
x = 78,520.76
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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.