Finding the Fourth Proportional to 113,810.25, 170,715.42 and 38,931.12
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Solution
The fourth proportional to 113,810.25, 170,715.42 and 38,931.12 is: 58,396.70
Step by Step Solution
- Step 1: Write the proportion equation
113,810.25 : 170,715.42 = 38,931.12 : x - Step 2: Convert to fraction form
113,810.25/170,715.42 = 38,931.12/x - Step 3: Cross multiply
113,810.25x = 170,715.42 × 38,931.12 - Step 4: Simplify right side
113,810.25x = 6,646,142,501.87 - Step 5: Solve for x
x = 6,646,142,501.87/113,810.25 - Step 6: Final answer
x = 58,396.70
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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.