Finding the Fourth Proportional to 117,726.61, 162,464.75 and 64,011.99
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Solution
The fourth proportional to 117,726.61, 162,464.75 and 64,011.99 is: 88,337.65
Step by Step Solution
- Step 1: Write the proportion equation
117,726.61 : 162,464.75 = 64,011.99 : x - Step 2: Convert to fraction form
117,726.61/162,464.75 = 64,011.99/x - Step 3: Cross multiply
117,726.61x = 162,464.75 × 64,011.99 - Step 4: Simplify right side
117,726.61x = 10,399,691,263.09 - Step 5: Solve for x
x = 10,399,691,263.09/117,726.61 - Step 6: Final answer
x = 88,337.65
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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.