Finding the Fourth Proportional to 126,422.40, 174,461.60 and 69,830.08
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Solution
The fourth proportional to 126,422.40, 174,461.60 and 69,830.08 is: 96,364.79
Step by Step Solution
- Step 1: Write the proportion equation
126,422.40 : 174,461.60 = 69,830.08 : x - Step 2: Convert to fraction form
126,422.40/174,461.60 = 69,830.08/x - Step 3: Cross multiply
126,422.40x = 174,461.60 × 69,830.08 - Step 4: Simplify right side
126,422.40x = 12,182,667,484.93 - Step 5: Solve for x
x = 12,182,667,484.93/126,422.40 - Step 6: Final answer
x = 96,364.79
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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.