Finding the Fourth Proportional to 139,688.12, 209,551.74 and 44,886.44
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Solution
The fourth proportional to 139,688.12, 209,551.74 and 44,886.44 is: 67,335.95
Step by Step Solution
- Step 1: Write the proportion equation
139,688.12 : 209,551.74 = 44,886.44 : x - Step 2: Convert to fraction form
139,688.12/209,551.74 = 44,886.44/x - Step 3: Cross multiply
139,688.12x = 209,551.74 × 44,886.44 - Step 4: Simplify right side
139,688.12x = 9,406,031,604.41 - Step 5: Solve for x
x = 9,406,031,604.41/139,688.12 - Step 6: Final answer
x = 67,335.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.