Finding the Fourth Proportional to 122,009.67, 168,373.35 and 68,294.70
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Solution
The fourth proportional to 122,009.67, 168,373.35 and 68,294.70 is: 94,246.69
Step by Step Solution
- Step 1: Write the proportion equation
122,009.67 : 168,373.35 = 68,294.70 : x - Step 2: Convert to fraction form
122,009.67/168,373.35 = 68,294.70/x - Step 3: Cross multiply
122,009.67x = 168,373.35 × 68,294.70 - Step 4: Simplify right side
122,009.67x = 11,499,007,426.25 - Step 5: Solve for x
x = 11,499,007,426.25/122,009.67 - Step 6: Final answer
x = 94,246.69
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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.