Finding the Fourth Proportional to 190,741.21, 286,155.47 and 82,688.71
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Solution
The fourth proportional to 190,741.21, 286,155.47 and 82,688.71 is: 124,051.99
Step by Step Solution
- Step 1: Write the proportion equation
190,741.21 : 286,155.47 = 82,688.71 : x - Step 2: Convert to fraction form
190,741.21/286,155.47 = 82,688.71/x - Step 3: Cross multiply
190,741.21x = 286,155.47 × 82,688.71 - Step 4: Simplify right side
190,741.21x = 23,661,826,260.30 - Step 5: Solve for x
x = 23,661,826,260.30/190,741.21 - Step 6: Final answer
x = 124,051.99
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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.