Finding the Fourth Proportional to 155,430.36, 214,501.77 and 91,766.79
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Solution
The fourth proportional to 155,430.36, 214,501.77 and 91,766.79 is: 126,642.82
Step by Step Solution
- Step 1: Write the proportion equation
155,430.36 : 214,501.77 = 91,766.79 : x - Step 2: Convert to fraction form
155,430.36/214,501.77 = 91,766.79/x - Step 3: Cross multiply
155,430.36x = 214,501.77 × 91,766.79 - Step 4: Simplify right side
155,430.36x = 19,684,138,882.22 - Step 5: Solve for x
x = 19,684,138,882.22/155,430.36 - Step 6: Final answer
x = 126,642.82
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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.