Finding the Fourth Proportional to 117,018.99, 161,486.28 and 63,303.84
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Solution
The fourth proportional to 117,018.99, 161,486.28 and 63,303.84 is: 87,359.34
Step by Step Solution
- Step 1: Write the proportion equation
117,018.99 : 161,486.28 = 63,303.84 : x - Step 2: Convert to fraction form
117,018.99/161,486.28 = 63,303.84/x - Step 3: Cross multiply
117,018.99x = 161,486.28 × 63,303.84 - Step 4: Simplify right side
117,018.99x = 10,222,701,631.32 - Step 5: Solve for x
x = 10,222,701,631.32/117,018.99 - Step 6: Final answer
x = 87,359.34
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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.