Finding the Fourth Proportional to 155,141.28, 214,176.36 and 104,420.88
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Solution
The fourth proportional to 155,141.28, 214,176.36 and 104,420.88 is: 144,155.60
Step by Step Solution
- Step 1: Write the proportion equation
155,141.28 : 214,176.36 = 104,420.88 : x - Step 2: Convert to fraction form
155,141.28/214,176.36 = 104,420.88/x - Step 3: Cross multiply
155,141.28x = 214,176.36 × 104,420.88 - Step 4: Simplify right side
155,141.28x = 22,364,483,986.40 - Step 5: Solve for x
x = 22,364,483,986.40/155,141.28 - Step 6: Final answer
x = 144,155.60
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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.