Finding the Fourth Proportional to 158,033.68, 236,927.48 and 79,107.28
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Solution
The fourth proportional to 158,033.68, 236,927.48 and 79,107.28 is: 118,599.33
Step by Step Solution
- Step 1: Write the proportion equation
158,033.68 : 236,927.48 = 79,107.28 : x - Step 2: Convert to fraction form
158,033.68/236,927.48 = 79,107.28/x - Step 3: Cross multiply
158,033.68x = 236,927.48 × 79,107.28 - Step 4: Simplify right side
158,033.68x = 18,742,688,500.05 - Step 5: Solve for x
x = 18,742,688,500.05/158,033.68 - Step 6: Final answer
x = 118,599.33
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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.