Finding the Fourth Proportional to 115,501.36, 159,430.26 and 67,737.28
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Solution
The fourth proportional to 115,501.36, 159,430.26 and 67,737.28 is: 93,499.96
Step by Step Solution
- Step 1: Write the proportion equation
115,501.36 : 159,430.26 = 67,737.28 : x - Step 2: Convert to fraction form
115,501.36/159,430.26 = 67,737.28/x - Step 3: Cross multiply
115,501.36x = 159,430.26 × 67,737.28 - Step 4: Simplify right side
115,501.36x = 10,799,372,162.09 - Step 5: Solve for x
x = 10,799,372,162.09/115,501.36 - Step 6: Final answer
x = 93,499.96
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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.