Finding the Fourth Proportional to 140,178.23, 193,444.26 and 79,748.74
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Solution
The fourth proportional to 140,178.23, 193,444.26 and 79,748.74 is: 110,052.30
Step by Step Solution
- Step 1: Write the proportion equation
140,178.23 : 193,444.26 = 79,748.74 : x - Step 2: Convert to fraction form
140,178.23/193,444.26 = 79,748.74/x - Step 3: Cross multiply
140,178.23x = 193,444.26 × 79,748.74 - Step 4: Simplify right side
140,178.23x = 15,426,935,995.23 - Step 5: Solve for x
x = 15,426,935,995.23/140,178.23 - Step 6: Final answer
x = 110,052.30
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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.