Finding the Fourth Proportional to 112,139.64, 168,237.84 and 37,260.18
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Solution
The fourth proportional to 112,139.64, 168,237.84 and 37,260.18 is: 55,899.70
Step by Step Solution
- Step 1: Write the proportion equation
112,139.64 : 168,237.84 = 37,260.18 : x - Step 2: Convert to fraction form
112,139.64/168,237.84 = 37,260.18/x - Step 3: Cross multiply
112,139.64x = 168,237.84 × 37,260.18 - Step 4: Simplify right side
112,139.64x = 6,268,572,201.21 - Step 5: Solve for x
x = 6,268,572,201.21/112,139.64 - Step 6: Final answer
x = 55,899.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.