Finding the Fourth Proportional to 124,134.74, 171,276.08 and 73,149.56
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Solution
The fourth proportional to 124,134.74, 171,276.08 and 73,149.56 is: 100,928.79
Step by Step Solution
- Step 1: Write the proportion equation
124,134.74 : 171,276.08 = 73,149.56 : x - Step 2: Convert to fraction form
124,134.74/171,276.08 = 73,149.56/x - Step 3: Cross multiply
124,134.74x = 171,276.08 × 73,149.56 - Step 4: Simplify right side
124,134.74x = 12,528,768,668.40 - Step 5: Solve for x
x = 12,528,768,668.40/124,134.74 - Step 6: Final answer
x = 100,928.79
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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.