Finding the Fourth Proportional to 128,276.24, 177,070.59 and 114,823.76
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Solution
The fourth proportional to 128,276.24, 177,070.59 and 114,823.76 is: 158,500.99
Step by Step Solution
- Step 1: Write the proportion equation
128,276.24 : 177,070.59 = 114,823.76 : x - Step 2: Convert to fraction form
128,276.24/177,070.59 = 114,823.76/x - Step 3: Cross multiply
128,276.24x = 177,070.59 × 114,823.76 - Step 4: Simplify right side
128,276.24x = 20,331,910,043.87 - Step 5: Solve for x
x = 20,331,910,043.87/128,276.24 - Step 6: Final answer
x = 158,500.99
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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.