Finding the Fourth Proportional to 134,458.80, 201,688.20 and 128,335.20
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Solution
The fourth proportional to 134,458.80, 201,688.20 and 128,335.20 is: 192,502.80
Step by Step Solution
- Step 1: Write the proportion equation
134,458.80 : 201,688.20 = 128,335.20 : x - Step 2: Convert to fraction form
134,458.80/201,688.20 = 128,335.20/x - Step 3: Cross multiply
134,458.80x = 201,688.20 × 128,335.20 - Step 4: Simplify right side
134,458.80x = 25,883,695,484.64 - Step 5: Solve for x
x = 25,883,695,484.64/134,458.80 - Step 6: Final answer
x = 192,502.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.