Finding the Fourth Proportional to 112,984.29, 156,124.63 and 82,303.99
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Solution
The fourth proportional to 112,984.29, 156,124.63 and 82,303.99 is: 113,729.79
Step by Step Solution
- Step 1: Write the proportion equation
112,984.29 : 156,124.63 = 82,303.99 : x - Step 2: Convert to fraction form
112,984.29/156,124.63 = 82,303.99/x - Step 3: Cross multiply
112,984.29x = 156,124.63 × 82,303.99 - Step 4: Simplify right side
112,984.29x = 12,849,679,986.27 - Step 5: Solve for x
x = 12,849,679,986.27/112,984.29 - Step 6: Final answer
x = 113,729.79
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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.