Finding the Fourth Proportional to 125,068.76, 172,619.38 and 97,790.95
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Solution
The fourth proportional to 125,068.76, 172,619.38 and 97,790.95 is: 134,970.65
Step by Step Solution
- Step 1: Write the proportion equation
125,068.76 : 172,619.38 = 97,790.95 : x - Step 2: Convert to fraction form
125,068.76/172,619.38 = 97,790.95/x - Step 3: Cross multiply
125,068.76x = 172,619.38 × 97,790.95 - Step 4: Simplify right side
125,068.76x = 16,880,612,250.60 - Step 5: Solve for x
x = 16,880,612,250.60/125,068.76 - Step 6: Final answer
x = 134,970.65
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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.