Finding the Fourth Proportional to 168,515.35, 232,444.39 and 128,140.60
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Solution
The fourth proportional to 168,515.35, 232,444.39 and 128,140.60 is: 176,752.82
Step by Step Solution
- Step 1: Write the proportion equation
168,515.35 : 232,444.39 = 128,140.60 : x - Step 2: Convert to fraction form
168,515.35/232,444.39 = 128,140.60/x - Step 3: Cross multiply
168,515.35x = 232,444.39 × 128,140.60 - Step 4: Simplify right side
168,515.35x = 29,785,563,601.23 - Step 5: Solve for x
x = 29,785,563,601.23/168,515.35 - Step 6: Final answer
x = 176,752.82
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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.