Finding the Fourth Proportional to 168,963.03, 232,920.50 and 128,606.49
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Solution
The fourth proportional to 168,963.03, 232,920.50 and 128,606.49 is: 177,287.82
Step by Step Solution
- Step 1: Write the proportion equation
168,963.03 : 232,920.50 = 128,606.49 : x - Step 2: Convert to fraction form
168,963.03/232,920.50 = 128,606.49/x - Step 3: Cross multiply
168,963.03x = 232,920.50 × 128,606.49 - Step 4: Simplify right side
168,963.03x = 29,955,087,311.01 - Step 5: Solve for x
x = 29,955,087,311.01/168,963.03 - Step 6: Final answer
x = 177,287.82
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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.