Finding the Fourth Proportional to 153,124.14, 211,324.23 and 85,146.06
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Solution
The fourth proportional to 153,124.14, 211,324.23 and 85,146.06 is: 117,508.75
Step by Step Solution
- Step 1: Write the proportion equation
153,124.14 : 211,324.23 = 85,146.06 : x - Step 2: Convert to fraction form
153,124.14/211,324.23 = 85,146.06/x - Step 3: Cross multiply
153,124.14x = 211,324.23 × 85,146.06 - Step 4: Simplify right side
153,124.14x = 17,993,425,567.03 - Step 5: Solve for x
x = 17,993,425,567.03/153,124.14 - Step 6: Final answer
x = 117,508.75
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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.