Finding the Fourth Proportional to 153,090.96, 211,248.96 and 85,110.84
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Solution
The fourth proportional to 153,090.96, 211,248.96 and 85,110.84 is: 117,443.75
Step by Step Solution
- Step 1: Write the proportion equation
153,090.96 : 211,248.96 = 85,110.84 : x - Step 2: Convert to fraction form
153,090.96/211,248.96 = 85,110.84/x - Step 3: Cross multiply
153,090.96x = 211,248.96 × 85,110.84 - Step 4: Simplify right side
153,090.96x = 17,979,576,434.73 - Step 5: Solve for x
x = 17,979,576,434.73/153,090.96 - Step 6: Final answer
x = 117,443.75
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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.