Finding the Fourth Proportional to 135,443.25, 202,341.19 and 87,669.14
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Solution
The fourth proportional to 135,443.25, 202,341.19 and 87,669.14 is: 130,970.55
Step by Step Solution
- Step 1: Write the proportion equation
135,443.25 : 202,341.19 = 87,669.14 : x - Step 2: Convert to fraction form
135,443.25/202,341.19 = 87,669.14/x - Step 3: Cross multiply
135,443.25x = 202,341.19 × 87,669.14 - Step 4: Simplify right side
135,443.25x = 17,739,077,047.38 - Step 5: Solve for x
x = 17,739,077,047.38/135,443.25 - Step 6: Final answer
x = 130,970.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.