Finding the Fourth Proportional to 121,795.74, 168,080.58 and 67,347.99
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Solution
The fourth proportional to 121,795.74, 168,080.58 and 67,347.99 is: 92,941.59
Step by Step Solution
- Step 1: Write the proportion equation
121,795.74 : 168,080.58 = 67,347.99 : x - Step 2: Convert to fraction form
121,795.74/168,080.58 = 67,347.99/x - Step 3: Cross multiply
121,795.74x = 168,080.58 × 67,347.99 - Step 4: Simplify right side
121,795.74x = 11,319,889,221.03 - Step 5: Solve for x
x = 11,319,889,221.03/121,795.74 - Step 6: Final answer
x = 92,941.59
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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.