Finding the Fourth Proportional to 190,139.14, 262,347.69 and 113,683.06
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Solution
The fourth proportional to 190,139.14, 262,347.69 and 113,683.06 is: 156,856.12
Step by Step Solution
- Step 1: Write the proportion equation
190,139.14 : 262,347.69 = 113,683.06 : x - Step 2: Convert to fraction form
190,139.14/262,347.69 = 113,683.06/x - Step 3: Cross multiply
190,139.14x = 262,347.69 × 113,683.06 - Step 4: Simplify right side
190,139.14x = 29,824,488,183.13 - Step 5: Solve for x
x = 29,824,488,183.13/190,139.14 - Step 6: Final answer
x = 156,856.12
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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.