Finding the Fourth Proportional to 122,739.63, 169,379.08 and 69,024.63
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Solution
The fourth proportional to 122,739.63, 169,379.08 and 69,024.63 is: 95,253.08
Step by Step Solution
- Step 1: Write the proportion equation
122,739.63 : 169,379.08 = 69,024.63 : x - Step 2: Convert to fraction form
122,739.63/169,379.08 = 69,024.63/x - Step 3: Cross multiply
122,739.63x = 169,379.08 × 69,024.63 - Step 4: Simplify right side
122,739.63x = 11,691,328,326.74 - Step 5: Solve for x
x = 11,691,328,326.74/122,739.63 - Step 6: Final answer
x = 95,253.08
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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.