Finding the Fourth Proportional to 134,998.20, 202,497.30 and 127,781.10
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Solution
The fourth proportional to 134,998.20, 202,497.30 and 127,781.10 is: 191,671.65
Step by Step Solution
- Step 1: Write the proportion equation
134,998.20 : 202,497.30 = 127,781.10 : x - Step 2: Convert to fraction form
134,998.20/202,497.30 = 127,781.10/x - Step 3: Cross multiply
134,998.20x = 202,497.30 × 127,781.10 - Step 4: Simplify right side
134,998.20x = 25,875,327,741.03 - Step 5: Solve for x
x = 25,875,327,741.03/134,998.20 - Step 6: Final answer
x = 191,671.65
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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.