Finding the Fourth Proportional to 115,090.50, 158,829.18 and 63,409.70
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Solution
The fourth proportional to 115,090.50, 158,829.18 and 63,409.70 is: 87,507.75
Step by Step Solution
- Step 1: Write the proportion equation
115,090.50 : 158,829.18 = 63,409.70 : x - Step 2: Convert to fraction form
115,090.50/158,829.18 = 63,409.70/x - Step 3: Cross multiply
115,090.50x = 158,829.18 × 63,409.70 - Step 4: Simplify right side
115,090.50x = 10,071,310,655.05 - Step 5: Solve for x
x = 10,071,310,655.05/115,090.50 - Step 6: Final answer
x = 87,507.75
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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.