Finding the Fourth Proportional to 134,430.20, 201,645.30 and 40,935.80
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Solution
The fourth proportional to 134,430.20, 201,645.30 and 40,935.80 is: 61,403.70
Step by Step Solution
- Step 1: Write the proportion equation
134,430.20 : 201,645.30 = 40,935.80 : x - Step 2: Convert to fraction form
134,430.20/201,645.30 = 40,935.80/x - Step 3: Cross multiply
134,430.20x = 201,645.30 × 40,935.80 - Step 4: Simplify right side
134,430.20x = 8,254,511,671.74 - Step 5: Solve for x
x = 8,254,511,671.74/134,430.20 - Step 6: Final answer
x = 61,403.70
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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.