Finding the Fourth Proportional to 119,864.13, 165,408.16 and 66,147.99
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Solution
The fourth proportional to 119,864.13, 165,408.16 and 66,147.99 is: 91,281.83
Step by Step Solution
- Step 1: Write the proportion equation
119,864.13 : 165,408.16 = 66,147.99 : x - Step 2: Convert to fraction form
119,864.13/165,408.16 = 66,147.99/x - Step 3: Cross multiply
119,864.13x = 165,408.16 × 66,147.99 - Step 4: Simplify right side
119,864.13x = 10,941,417,313.60 - Step 5: Solve for x
x = 10,941,417,313.60/119,864.13 - Step 6: Final answer
x = 91,281.83
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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.