Finding the Fourth Proportional to 159,365.48, 219,924.05 and 87,745.55
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Solution
The fourth proportional to 159,365.48, 219,924.05 and 87,745.55 is: 121,088.68
Step by Step Solution
- Step 1: Write the proportion equation
159,365.48 : 219,924.05 = 87,745.55 : x - Step 2: Convert to fraction form
159,365.48/219,924.05 = 87,745.55/x - Step 3: Cross multiply
159,365.48x = 219,924.05 × 87,745.55 - Step 4: Simplify right side
159,365.48x = 19,297,355,187.13 - Step 5: Solve for x
x = 19,297,355,187.13/159,365.48 - Step 6: Final answer
x = 121,088.68
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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.