Finding the Fourth Proportional to 130,748.99, 180,397.73 and 79,770.02
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Solution
The fourth proportional to 130,748.99, 180,397.73 and 79,770.02 is: 110,060.74
Step by Step Solution
- Step 1: Write the proportion equation
130,748.99 : 180,397.73 = 79,770.02 : x - Step 2: Convert to fraction form
130,748.99/180,397.73 = 79,770.02/x - Step 3: Cross multiply
130,748.99x = 180,397.73 × 79,770.02 - Step 4: Simplify right side
130,748.99x = 14,390,329,827.49 - Step 5: Solve for x
x = 14,390,329,827.49/130,748.99 - Step 6: Final answer
x = 110,060.74
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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.