Finding the Fourth Proportional to 117,615.36, 176,284.80 and 91,073.28
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Solution
The fourth proportional to 117,615.36, 176,284.80 and 91,073.28 is: 136,502.88
Step by Step Solution
- Step 1: Write the proportion equation
117,615.36 : 176,284.80 = 91,073.28 : x - Step 2: Convert to fraction form
117,615.36/176,284.80 = 91,073.28/x - Step 3: Cross multiply
117,615.36x = 176,284.80 × 91,073.28 - Step 4: Simplify right side
117,615.36x = 16,054,834,950.14 - Step 5: Solve for x
x = 16,054,834,950.14/117,615.36 - Step 6: Final answer
x = 136,502.88
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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.