Finding the Fourth Proportional to 115,379.88, 157,088.32 and 115,024.48
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Solution
The fourth proportional to 115,379.88, 157,088.32 and 115,024.48 is: 156,604.45
Step by Step Solution
- Step 1: Write the proportion equation
115,379.88 : 157,088.32 = 115,024.48 : x - Step 2: Convert to fraction form
115,379.88/157,088.32 = 115,024.48/x - Step 3: Cross multiply
115,379.88x = 157,088.32 × 115,024.48 - Step 4: Simplify right side
115,379.88x = 18,069,002,322.07 - Step 5: Solve for x
x = 18,069,002,322.07/115,379.88 - Step 6: Final answer
x = 156,604.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.