Finding the Fourth Proportional to 124,621.23, 171,975.06 and 70,905.09
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Solution
The fourth proportional to 124,621.23, 171,975.06 and 70,905.09 is: 97,847.75
Step by Step Solution
- Step 1: Write the proportion equation
124,621.23 : 171,975.06 = 70,905.09 : x - Step 2: Convert to fraction form
124,621.23/171,975.06 = 70,905.09/x - Step 3: Cross multiply
124,621.23x = 171,975.06 × 70,905.09 - Step 4: Simplify right side
124,621.23x = 12,193,907,107.06 - Step 5: Solve for x
x = 12,193,907,107.06/124,621.23 - Step 6: Final answer
x = 97,847.75
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1.5x scale
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.