Finding the Fourth Proportional to 140,123.36, 193,319.69 and 107,867.84
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Solution
The fourth proportional to 140,123.36, 193,319.69 and 107,867.84 is: 148,818.70
Step by Step Solution
- Step 1: Write the proportion equation
140,123.36 : 193,319.69 = 107,867.84 : x - Step 2: Convert to fraction form
140,123.36/193,319.69 = 107,867.84/x - Step 3: Cross multiply
140,123.36x = 193,319.69 × 107,867.84 - Step 4: Simplify right side
140,123.36x = 20,852,975,883.83 - Step 5: Solve for x
x = 20,852,975,883.83/140,123.36 - Step 6: Final answer
x = 148,818.70
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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.