Finding the Fourth Proportional to 123,420.26, 170,320.77 and 66,831.63
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Solution
The fourth proportional to 123,420.26, 170,320.77 and 66,831.63 is: 92,228.09
Step by Step Solution
- Step 1: Write the proportion equation
123,420.26 : 170,320.77 = 66,831.63 : x - Step 2: Convert to fraction form
123,420.26/170,320.77 = 66,831.63/x - Step 3: Cross multiply
123,420.26x = 170,320.77 × 66,831.63 - Step 4: Simplify right side
123,420.26x = 11,382,814,681.96 - Step 5: Solve for x
x = 11,382,814,681.96/123,420.26 - Step 6: Final answer
x = 92,228.09
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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.