Finding the Fourth Proportional to 121,495.77, 167,675.79 and 67,785.77
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Solution
The fourth proportional to 121,495.77, 167,675.79 and 67,785.77 is: 93,550.84
Step by Step Solution
- Step 1: Write the proportion equation
121,495.77 : 167,675.79 = 67,785.77 : x - Step 2: Convert to fraction form
121,495.77/167,675.79 = 67,785.77/x - Step 3: Cross multiply
121,495.77x = 167,675.79 × 67,785.77 - Step 4: Simplify right side
121,495.77x = 11,366,031,697.13 - Step 5: Solve for x
x = 11,366,031,697.13/121,495.77 - Step 6: Final answer
x = 93,550.84
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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.