Finding the Fourth Proportional to 145,772.30, 201,097.04 and 85,305.87
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Solution
The fourth proportional to 145,772.30, 201,097.04 and 85,305.87 is: 117,681.88
Step by Step Solution
- Step 1: Write the proportion equation
145,772.30 : 201,097.04 = 85,305.87 : x - Step 2: Convert to fraction form
145,772.30/201,097.04 = 85,305.87/x - Step 3: Cross multiply
145,772.30x = 201,097.04 × 85,305.87 - Step 4: Simplify right side
145,772.30x = 17,154,757,525.10 - Step 5: Solve for x
x = 17,154,757,525.10/145,772.30 - Step 6: Final answer
x = 117,681.88
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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.