Finding the Fourth Proportional to 169,934.70, 234,515.90 and 93,459.70
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Solution
The fourth proportional to 169,934.70, 234,515.90 and 93,459.70 is: 128,977.69
Step by Step Solution
- Step 1: Write the proportion equation
169,934.70 : 234,515.90 = 93,459.70 : x - Step 2: Convert to fraction form
169,934.70/234,515.90 = 93,459.70/x - Step 3: Cross multiply
169,934.70x = 234,515.90 × 93,459.70 - Step 4: Simplify right side
169,934.70x = 21,917,785,659.23 - Step 5: Solve for x
x = 21,917,785,659.23/169,934.70 - Step 6: Final answer
x = 128,977.69
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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.