Finding the Fourth Proportional to 113,539.26, 156,689.02 and 63,238.26
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Solution
The fourth proportional to 113,539.26, 156,689.02 and 63,238.26 is: 87,271.50
Step by Step Solution
- Step 1: Write the proportion equation
113,539.26 : 156,689.02 = 63,238.26 : x - Step 2: Convert to fraction form
113,539.26/156,689.02 = 63,238.26/x - Step 3: Cross multiply
113,539.26x = 156,689.02 × 63,238.26 - Step 4: Simplify right side
113,539.26x = 9,908,740,985.91 - Step 5: Solve for x
x = 9,908,740,985.91/113,539.26 - Step 6: Final answer
x = 87,271.50
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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.