Finding the Fourth Proportional to 140,478.63, 210,718.14 and 57,372.63
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Solution
The fourth proportional to 140,478.63, 210,718.14 and 57,372.63 is: 86,059.02
Step by Step Solution
- Step 1: Write the proportion equation
140,478.63 : 210,718.14 = 57,372.63 : x - Step 2: Convert to fraction form
140,478.63/210,718.14 = 57,372.63/x - Step 3: Cross multiply
140,478.63x = 210,718.14 × 57,372.63 - Step 4: Simplify right side
140,478.63x = 12,089,453,880.51 - Step 5: Solve for x
x = 12,089,453,880.51/140,478.63 - Step 6: Final answer
x = 86,059.02
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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.