Finding the Fourth Proportional to 117,027.68, 161,498.21 and 63,312.66
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Solution
The fourth proportional to 117,027.68, 161,498.21 and 63,312.66 is: 87,371.48
Step by Step Solution
- Step 1: Write the proportion equation
117,027.68 : 161,498.21 = 63,312.66 : x - Step 2: Convert to fraction form
117,027.68/161,498.21 = 63,312.66/x - Step 3: Cross multiply
117,027.68x = 161,498.21 × 63,312.66 - Step 4: Simplify right side
117,027.68x = 10,224,880,943.78 - Step 5: Solve for x
x = 10,224,880,943.78/117,027.68 - Step 6: Final answer
x = 87,371.48
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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.