Finding the Fourth Proportional to 125,417.34, 172,791.87 and 119,438.63
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Solution
The fourth proportional to 125,417.34, 172,791.87 and 119,438.63 is: 164,554.79
Step by Step Solution
- Step 1: Write the proportion equation
125,417.34 : 172,791.87 = 119,438.63 : x - Step 2: Convert to fraction form
125,417.34/172,791.87 = 119,438.63/x - Step 3: Cross multiply
125,417.34x = 172,791.87 × 119,438.63 - Step 4: Simplify right side
125,417.34x = 20,638,023,630.75 - Step 5: Solve for x
x = 20,638,023,630.75/125,417.34 - Step 6: Final answer
x = 164,554.79
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1.5x scale
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.