Finding the Fourth Proportional to 102,430.53, 141,342.72 and 62,154.09
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Solution
The fourth proportional to 102,430.53, 141,342.72 and 62,154.09 is: 85,765.72
Step by Step Solution
- Step 1: Write the proportion equation
102,430.53 : 141,342.72 = 62,154.09 : x - Step 2: Convert to fraction form
102,430.53/141,342.72 = 62,154.09/x - Step 3: Cross multiply
102,430.53x = 141,342.72 × 62,154.09 - Step 4: Simplify right side
102,430.53x = 8,785,028,139.72 - Step 5: Solve for x
x = 8,785,028,139.72/102,430.53 - Step 6: Final answer
x = 85,765.72
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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.