Finding the Fourth Proportional to 128,541.13, 192,560.59 and 88,553.05
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Solution
The fourth proportional to 128,541.13, 192,560.59 and 88,553.05 is: 132,656.59
Step by Step Solution
- Step 1: Write the proportion equation
128,541.13 : 192,560.59 = 88,553.05 : x - Step 2: Convert to fraction form
128,541.13/192,560.59 = 88,553.05/x - Step 3: Cross multiply
128,541.13x = 192,560.59 × 88,553.05 - Step 4: Simplify right side
128,541.13x = 17,051,827,554.30 - Step 5: Solve for x
x = 17,051,827,554.30/128,541.13 - Step 6: Final answer
x = 132,656.59
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.