Finding the Fourth Proportional to 113,708.24, 156,918.20 and 62,722.80
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Solution
The fourth proportional to 113,708.24, 156,918.20 and 62,722.80 is: 86,557.92
Step by Step Solution
- Step 1: Write the proportion equation
113,708.24 : 156,918.20 = 62,722.80 : x - Step 2: Convert to fraction form
113,708.24/156,918.20 = 62,722.80/x - Step 3: Cross multiply
113,708.24x = 156,918.20 × 62,722.80 - Step 4: Simplify right side
113,708.24x = 9,842,348,874.96 - Step 5: Solve for x
x = 9,842,348,874.96/113,708.24 - Step 6: Final answer
x = 86,557.92
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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.