Finding the Fourth Proportional to 145,985.40, 201,444.80 and 107,765.28
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Solution
The fourth proportional to 145,985.40, 201,444.80 and 107,765.28 is: 148,704.98
Step by Step Solution
- Step 1: Write the proportion equation
145,985.40 : 201,444.80 = 107,765.28 : x - Step 2: Convert to fraction form
145,985.40/201,444.80 = 107,765.28/x - Step 3: Cross multiply
145,985.40x = 201,444.80 × 107,765.28 - Step 4: Simplify right side
145,985.40x = 21,708,755,276.54 - Step 5: Solve for x
x = 21,708,755,276.54/145,985.40 - Step 6: Final answer
x = 148,704.98
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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.