Finding the Fourth Proportional to 171,237.72, 236,325.84 and 98,643.12
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Solution
The fourth proportional to 171,237.72, 236,325.84 and 98,643.12 is: 136,137.75
Step by Step Solution
- Step 1: Write the proportion equation
171,237.72 : 236,325.84 = 98,643.12 : x - Step 2: Convert to fraction form
171,237.72/236,325.84 = 98,643.12/x - Step 3: Cross multiply
171,237.72x = 236,325.84 × 98,643.12 - Step 4: Simplify right side
171,237.72x = 23,311,918,194.22 - Step 5: Solve for x
x = 23,311,918,194.22/171,237.72 - Step 6: Final answer
x = 136,137.75
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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.