Finding the Fourth Proportional to 134,647.24, 185,823.90 and 74,228.68
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Solution
The fourth proportional to 134,647.24, 185,823.90 and 74,228.68 is: 102,441.48
Step by Step Solution
- Step 1: Write the proportion equation
134,647.24 : 185,823.90 = 74,228.68 : x - Step 2: Convert to fraction form
134,647.24/185,823.90 = 74,228.68/x - Step 3: Cross multiply
134,647.24x = 185,823.90 × 74,228.68 - Step 4: Simplify right side
134,647.24x = 13,793,462,809.45 - Step 5: Solve for x
x = 13,793,462,809.45/134,647.24 - Step 6: Final answer
x = 102,441.48
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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.