Finding the Fourth Proportional to 134,646.96, 185,806.20 and 74,220.96
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Solution
The fourth proportional to 134,646.96, 185,806.20 and 74,220.96 is: 102,421.28
Step by Step Solution
- Step 1: Write the proportion equation
134,646.96 : 185,806.20 = 74,220.96 : x - Step 2: Convert to fraction form
134,646.96/185,806.20 = 74,220.96/x - Step 3: Cross multiply
134,646.96x = 185,806.20 × 74,220.96 - Step 4: Simplify right side
134,646.96x = 13,790,714,537.95 - Step 5: Solve for x
x = 13,790,714,537.95/134,646.96 - Step 6: Final answer
x = 102,421.28
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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.