Finding the Fourth Proportional to 153,531.99, 211,889.73 and 85,560.03
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Solution
The fourth proportional to 153,531.99, 211,889.73 and 85,560.03 is: 118,081.53
Step by Step Solution
- Step 1: Write the proportion equation
153,531.99 : 211,889.73 = 85,560.03 : x - Step 2: Convert to fraction form
153,531.99/211,889.73 = 85,560.03/x - Step 3: Cross multiply
153,531.99x = 211,889.73 × 85,560.03 - Step 4: Simplify right side
153,531.99x = 18,129,291,655.49 - Step 5: Solve for x
x = 18,129,291,655.49/153,531.99 - Step 6: Final answer
x = 118,081.53
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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.