Finding the Fourth Proportional to 125,703.42, 173,507.50 and 74,752.05
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Solution
The fourth proportional to 125,703.42, 173,507.50 and 74,752.05 is: 103,179.70
Step by Step Solution
- Step 1: Write the proportion equation
125,703.42 : 173,507.50 = 74,752.05 : x - Step 2: Convert to fraction form
125,703.42/173,507.50 = 74,752.05/x - Step 3: Cross multiply
125,703.42x = 173,507.50 × 74,752.05 - Step 4: Simplify right side
125,703.42x = 12,970,041,315.38 - Step 5: Solve for x
x = 12,970,041,315.38/125,703.42 - Step 6: Final answer
x = 103,179.70
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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.