Finding the Fourth Proportional to 102,209.58, 140,928.53 and 69,959.75
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Solution
The fourth proportional to 102,209.58, 140,928.53 and 69,959.75 is: 96,461.84
Step by Step Solution
- Step 1: Write the proportion equation
102,209.58 : 140,928.53 = 69,959.75 : x - Step 2: Convert to fraction form
102,209.58/140,928.53 = 69,959.75/x - Step 3: Cross multiply
102,209.58x = 140,928.53 × 69,959.75 - Step 4: Simplify right side
102,209.58x = 9,859,323,672.23 - Step 5: Solve for x
x = 9,859,323,672.23/102,209.58 - Step 6: Final answer
x = 96,461.84
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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.