Finding the Fourth Proportional to 145,724.14, 201,108.45 and 88,403.68
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Solution
The fourth proportional to 145,724.14, 201,108.45 and 88,403.68 is: 122,002.62
Step by Step Solution
- Step 1: Write the proportion equation
145,724.14 : 201,108.45 = 88,403.68 : x - Step 2: Convert to fraction form
145,724.14/201,108.45 = 88,403.68/x - Step 3: Cross multiply
145,724.14x = 201,108.45 × 88,403.68 - Step 4: Simplify right side
145,724.14x = 17,778,727,059.10 - Step 5: Solve for x
x = 17,778,727,059.10/145,724.14 - Step 6: Final answer
x = 122,002.62
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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.