Finding the Fourth Proportional to 113,516.13, 156,657.12 and 63,215.13
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Solution
The fourth proportional to 113,516.13, 156,657.12 and 63,215.13 is: 87,239.59
Step by Step Solution
- Step 1: Write the proportion equation
113,516.13 : 156,657.12 = 63,215.13 : x - Step 2: Convert to fraction form
113,516.13/156,657.12 = 63,215.13/x - Step 3: Cross multiply
113,516.13x = 156,657.12 × 63,215.13 - Step 4: Simplify right side
113,516.13x = 9,903,100,206.23 - Step 5: Solve for x
x = 9,903,100,206.23/113,516.13 - Step 6: Final answer
x = 87,239.59
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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.