Finding the Fourth Proportional to 113,513.13, 156,652.98 and 63,212.13
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Solution
The fourth proportional to 113,513.13, 156,652.98 and 63,212.13 is: 87,235.45
Step by Step Solution
- Step 1: Write the proportion equation
113,513.13 : 156,652.98 = 63,212.13 : x - Step 2: Convert to fraction form
113,513.13/156,652.98 = 63,212.13/x - Step 3: Cross multiply
113,513.13x = 156,652.98 × 63,212.13 - Step 4: Simplify right side
113,513.13x = 9,902,368,536.65 - Step 5: Solve for x
x = 9,902,368,536.65/113,513.13 - Step 6: Final answer
x = 87,235.45
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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.