Finding the Fourth Proportional to 123,520.02, 170,457.36 and 66,931.26
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Solution
The fourth proportional to 123,520.02, 170,457.36 and 66,931.26 is: 92,364.99
Step by Step Solution
- Step 1: Write the proportion equation
123,520.02 : 170,457.36 = 66,931.26 : x - Step 2: Convert to fraction form
123,520.02/170,457.36 = 66,931.26/x - Step 3: Cross multiply
123,520.02x = 170,457.36 × 66,931.26 - Step 4: Simplify right side
123,520.02x = 11,408,925,881.07 - Step 5: Solve for x
x = 11,408,925,881.07/123,520.02 - Step 6: Final answer
x = 92,364.99
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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.