Finding the Fourth Proportional to 130,829.22, 180,497.08 and 74,207.79
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Solution
The fourth proportional to 130,829.22, 180,497.08 and 74,207.79 is: 102,379.95
Step by Step Solution
- Step 1: Write the proportion equation
130,829.22 : 180,497.08 = 74,207.79 : x - Step 2: Convert to fraction form
130,829.22/180,497.08 = 74,207.79/x - Step 3: Cross multiply
130,829.22x = 180,497.08 × 74,207.79 - Step 4: Simplify right side
130,829.22x = 13,394,288,320.25 - Step 5: Solve for x
x = 13,394,288,320.25/130,829.22 - Step 6: Final answer
x = 102,379.95
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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.