Finding the Fourth Proportional to 145,594.19, 200,919.57 and 81,931.99
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Solution
The fourth proportional to 145,594.19, 200,919.57 and 81,931.99 is: 113,065.91
Step by Step Solution
- Step 1: Write the proportion equation
145,594.19 : 200,919.57 = 81,931.99 : x - Step 2: Convert to fraction form
145,594.19/200,919.57 = 81,931.99/x - Step 3: Cross multiply
145,594.19x = 200,919.57 × 81,931.99 - Step 4: Simplify right side
145,594.19x = 16,461,739,207.64 - Step 5: Solve for x
x = 16,461,739,207.64/145,594.19 - Step 6: Final answer
x = 113,065.91
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.