Finding the Fourth Proportional to 117,461.99, 162,232.11 and 77,355.02
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Solution
The fourth proportional to 117,461.99, 162,232.11 and 77,355.02 is: 106,838.54
Step by Step Solution
- Step 1: Write the proportion equation
117,461.99 : 162,232.11 = 77,355.02 : x - Step 2: Convert to fraction form
117,461.99/162,232.11 = 77,355.02/x - Step 3: Cross multiply
117,461.99x = 162,232.11 × 77,355.02 - Step 4: Simplify right side
117,461.99x = 12,549,467,302.53 - Step 5: Solve for x
x = 12,549,467,302.53/117,461.99 - Step 6: Final answer
x = 106,838.54
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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.