Finding the Fourth Proportional to 122,006.97, 168,345.68 and 76,658.68
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Solution
The fourth proportional to 122,006.97, 168,345.68 and 76,658.68 is: 105,773.94
Step by Step Solution
- Step 1: Write the proportion equation
122,006.97 : 168,345.68 = 76,658.68 : x - Step 2: Convert to fraction form
122,006.97/168,345.68 = 76,658.68/x - Step 3: Cross multiply
122,006.97x = 168,345.68 × 76,658.68 - Step 4: Simplify right side
122,006.97x = 12,905,157,612.50 - Step 5: Solve for x
x = 12,905,157,612.50/122,006.97 - Step 6: Final answer
x = 105,773.94
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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.