Finding the Fourth Proportional to 122,104.08, 168,585.93 and 76,233.65
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Solution
The fourth proportional to 122,104.08, 168,585.93 and 76,233.65 is: 105,253.81
Step by Step Solution
- Step 1: Write the proportion equation
122,104.08 : 168,585.93 = 76,233.65 : x - Step 2: Convert to fraction form
122,104.08/168,585.93 = 76,233.65/x - Step 3: Cross multiply
122,104.08x = 168,585.93 × 76,233.65 - Step 4: Simplify right side
122,104.08x = 12,851,919,939.61 - Step 5: Solve for x
x = 12,851,919,939.61/122,104.08 - Step 6: Final answer
x = 105,253.81
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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.