Finding the Fourth Proportional to 158,163.12, 236,860.74 and 86,977.08
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Solution
The fourth proportional to 158,163.12, 236,860.74 and 86,977.08 is: 130,254.48
Step by Step Solution
- Step 1: Write the proportion equation
158,163.12 : 236,860.74 = 86,977.08 : x - Step 2: Convert to fraction form
158,163.12/236,860.74 = 86,977.08/x - Step 3: Cross multiply
158,163.12x = 236,860.74 × 86,977.08 - Step 4: Simplify right side
158,163.12x = 20,601,455,531.84 - Step 5: Solve for x
x = 20,601,455,531.84/158,163.12 - Step 6: Final answer
x = 130,254.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.