Finding the Fourth Proportional to 119,720.29, 165,215.12 and 66,007.23
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Solution
The fourth proportional to 119,720.29, 165,215.12 and 66,007.23 is: 91,090.59
Step by Step Solution
- Step 1: Write the proportion equation
119,720.29 : 165,215.12 = 66,007.23 : x - Step 2: Convert to fraction form
119,720.29/165,215.12 = 66,007.23/x - Step 3: Cross multiply
119,720.29x = 165,215.12 × 66,007.23 - Step 4: Simplify right side
119,720.29x = 10,905,391,599.24 - Step 5: Solve for x
x = 10,905,391,599.24/119,720.29 - Step 6: Final answer
x = 91,090.59
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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.