Finding the Fourth Proportional to 134,645.98, 185,802.99 and 74,213.29
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Solution
The fourth proportional to 134,645.98, 185,802.99 and 74,213.29 is: 102,409.68
Step by Step Solution
- Step 1: Write the proportion equation
134,645.98 : 185,802.99 = 74,213.29 : x - Step 2: Convert to fraction form
134,645.98/185,802.99 = 74,213.29/x - Step 3: Cross multiply
134,645.98x = 185,802.99 × 74,213.29 - Step 4: Simplify right side
134,645.98x = 13,789,051,179.74 - Step 5: Solve for x
x = 13,789,051,179.74/134,645.98 - Step 6: Final answer
x = 102,409.68
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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.