Finding the Fourth Proportional to 135,445.32, 202,344.27 and 87,671.19
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Solution
The fourth proportional to 135,445.32, 202,344.27 and 87,671.19 is: 130,973.61
Step by Step Solution
- Step 1: Write the proportion equation
135,445.32 : 202,344.27 = 87,671.19 : x - Step 2: Convert to fraction form
135,445.32/202,344.27 = 87,671.19/x - Step 3: Cross multiply
135,445.32x = 202,344.27 × 87,671.19 - Step 4: Simplify right side
135,445.32x = 17,739,762,940.58 - Step 5: Solve for x
x = 17,739,762,940.58/135,445.32 - Step 6: Final answer
x = 130,973.61
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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.