Finding the Fourth Proportional to 135,576.64, 187,032.48 and 85,303.36
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Solution
The fourth proportional to 135,576.64, 187,032.48 and 85,303.36 is: 117,678.82
Step by Step Solution
- Step 1: Write the proportion equation
135,576.64 : 187,032.48 = 85,303.36 : x - Step 2: Convert to fraction form
135,576.64/187,032.48 = 85,303.36/x - Step 3: Cross multiply
135,576.64x = 187,032.48 × 85,303.36 - Step 4: Simplify right side
135,576.64x = 15,954,498,973.13 - Step 5: Solve for x
x = 15,954,498,973.13/135,576.64 - Step 6: Final answer
x = 117,678.82
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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.