Finding the Fourth Proportional to 145,969.65, 201,439.58 and 85,576.05
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Solution
The fourth proportional to 145,969.65, 201,439.58 and 85,576.05 is: 118,095.80
Step by Step Solution
- Step 1: Write the proportion equation
145,969.65 : 201,439.58 = 85,576.05 : x - Step 2: Convert to fraction form
145,969.65/201,439.58 = 85,576.05/x - Step 3: Cross multiply
145,969.65x = 201,439.58 × 85,576.05 - Step 4: Simplify right side
145,969.65x = 17,238,403,142.18 - Step 5: Solve for x
x = 17,238,403,142.18/145,969.65 - Step 6: Final answer
x = 118,095.80
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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.