Finding the Fourth Proportional to 134,570.41, 185,686.88 and 76,418.08
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Solution
The fourth proportional to 134,570.41, 185,686.88 and 76,418.08 is: 105,445.43
Step by Step Solution
- Step 1: Write the proportion equation
134,570.41 : 185,686.88 = 76,418.08 : x - Step 2: Convert to fraction form
134,570.41/185,686.88 = 76,418.08/x - Step 3: Cross multiply
134,570.41x = 185,686.88 × 76,418.08 - Step 4: Simplify right side
134,570.41x = 14,189,834,004.48 - Step 5: Solve for x
x = 14,189,834,004.48/134,570.41 - Step 6: Final answer
x = 105,445.43
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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.