Finding the Fourth Proportional to 173,430.19, 239,372.25 and 105,432.75
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Solution
The fourth proportional to 173,430.19, 239,372.25 and 105,432.75 is: 145,520.65
Step by Step Solution
- Step 1: Write the proportion equation
173,430.19 : 239,372.25 = 105,432.75 : x - Step 2: Convert to fraction form
173,430.19/239,372.25 = 105,432.75/x - Step 3: Cross multiply
173,430.19x = 239,372.25 × 105,432.75 - Step 4: Simplify right side
173,430.19x = 25,237,674,195.81 - Step 5: Solve for x
x = 25,237,674,195.81/173,430.19 - Step 6: Final answer
x = 145,520.65
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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.