Finding the Fourth Proportional to 115,389.64, 173,232.09 and 97,970.14
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Solution
The fourth proportional to 115,389.64, 173,232.09 and 97,970.14 is: 147,080.55
Step by Step Solution
- Step 1: Write the proportion equation
115,389.64 : 173,232.09 = 97,970.14 : x - Step 2: Convert to fraction form
115,389.64/173,232.09 = 97,970.14/x - Step 3: Cross multiply
115,389.64x = 173,232.09 × 97,970.14 - Step 4: Simplify right side
115,389.64x = 16,971,572,109.79 - Step 5: Solve for x
x = 16,971,572,109.79/115,389.64 - Step 6: Final answer
x = 147,080.55
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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.