Finding the Fourth Proportional to 93,247.90, 139,872.84 and 74,646.20
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Solution
The fourth proportional to 93,247.90, 139,872.84 and 74,646.20 is: 111,970.09
Step by Step Solution
- Step 1: Write the proportion equation
93,247.90 : 139,872.84 = 74,646.20 : x - Step 2: Convert to fraction form
93,247.90/139,872.84 = 74,646.20/x - Step 3: Cross multiply
93,247.90x = 139,872.84 × 74,646.20 - Step 4: Simplify right side
93,247.90x = 10,440,975,989.21 - Step 5: Solve for x
x = 10,440,975,989.21/93,247.90 - Step 6: Final answer
x = 111,970.09
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1.5x scale
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.