Finding the Fourth Proportional to 142,764.06, 197,014.50 and 79,102.92
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Solution
The fourth proportional to 142,764.06, 197,014.50 and 79,102.92 is: 109,162.08
Step by Step Solution
- Step 1: Write the proportion equation
142,764.06 : 197,014.50 = 79,102.92 : x - Step 2: Convert to fraction form
142,764.06/197,014.50 = 79,102.92/x - Step 3: Cross multiply
142,764.06x = 197,014.50 × 79,102.92 - Step 4: Simplify right side
142,764.06x = 15,584,422,232.34 - Step 5: Solve for x
x = 15,584,422,232.34/142,764.06 - Step 6: Final answer
x = 109,162.08
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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.