Finding the Fourth Proportional to 83,153.80, 125,292.22 and 68,686.84
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Solution
The fourth proportional to 83,153.80, 125,292.22 and 68,686.84 is: 103,494.09
Step by Step Solution
- Step 1: Write the proportion equation
83,153.80 : 125,292.22 = 68,686.84 : x - Step 2: Convert to fraction form
83,153.80/125,292.22 = 68,686.84/x - Step 3: Cross multiply
83,153.80x = 125,292.22 × 68,686.84 - Step 4: Simplify right side
83,153.80x = 8,605,926,668.38 - Step 5: Solve for x
x = 8,605,926,668.38/83,153.80 - Step 6: Final answer
x = 103,494.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.