Finding the Fourth Proportional to 121,203.24, 167,260.05 and 67,488.90
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Solution
The fourth proportional to 121,203.24, 167,260.05 and 67,488.90 is: 93,134.45
Step by Step Solution
- Step 1: Write the proportion equation
121,203.24 : 167,260.05 = 67,488.90 : x - Step 2: Convert to fraction form
121,203.24/167,260.05 = 67,488.90/x - Step 3: Cross multiply
121,203.24x = 167,260.05 × 67,488.90 - Step 4: Simplify right side
121,203.24x = 11,288,196,788.45 - Step 5: Solve for x
x = 11,288,196,788.45/121,203.24 - Step 6: Final answer
x = 93,134.45
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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.