Finding the Fourth Proportional to 130,122.70, 181,938.50 and 130,122.70
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Solution
The fourth proportional to 130,122.70, 181,938.50 and 130,122.70 is: 181,938.50
Step by Step Solution
- Step 1: Write the proportion equation
130,122.70 : 181,938.50 = 130,122.70 : x - Step 2: Convert to fraction form
130,122.70/181,938.50 = 130,122.70/x - Step 3: Cross multiply
130,122.70x = 181,938.50 × 130,122.70 - Step 4: Simplify right side
130,122.70x = 23,674,328,853.95 - Step 5: Solve for x
x = 23,674,328,853.95/130,122.70 - Step 6: Final answer
x = 181,938.50
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.